![\"Tokyo,](\"https:\/\/towa-circuit.co.jp\/wp-content\/uploads\/2024\/08\/m-18tp-1024x728.png\")
<\/p>\nUtilization of Ground Planes<\/strong><\/span><\/h3>\n<\/p><\/div>\n\n <\/strong>Separation of Ground and Signal Layers<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\n\n\n\nEnsuring Clearance and
Creepage Distances<\/strong><\/span><\/h3>\n<\/p><\/div>\n\nSelecting Appropriate Insulation Materials<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\nNow, let\u2019s dive deeper into clearance and creepage distances!<\/p>\n
Ensuring Clearance and Creepage Distances<\/strong><\/span><\/h3>\n\n\n\nPlacement of High-Voltage Components<\/strong><\/h4>\nHigh-voltage components should be positioned at a sufficient distance from other components and conductive parts of the board to reduce the risk of discharge. Carefully arranging components to maintain clearance improves safety and reliability.<\/p>\n<\/div>\n
\nOptimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
![\"Tokyo,](\"https:\/\/towa-circuit.co.jp\/wp-content\/themes\/towa_circuit)
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
<\/strong>Separation of Ground and Signal Layers<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\n\n\n\nEnsuring Clearance and
Creepage Distances<\/strong><\/span><\/h3>\n<\/p><\/div>\n\nSelecting Appropriate Insulation Materials<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\nNow, let\u2019s dive deeper into clearance and creepage distances!<\/p>\n
Ensuring Clearance and Creepage Distances<\/strong><\/span><\/h3>\n\n\n\nPlacement of High-Voltage Components<\/strong><\/h4>\nHigh-voltage components should be positioned at a sufficient distance from other components and conductive parts of the board to reduce the risk of discharge. Carefully arranging components to maintain clearance improves safety and reliability.<\/p>\n<\/div>\n
\nOptimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Ensuring Clearance and
Creepage Distances<\/strong><\/span><\/h3>\n<\/p><\/div>\n\nSelecting Appropriate Insulation Materials<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\nNow, let\u2019s dive deeper into clearance and creepage distances!<\/p>\n
Ensuring Clearance and Creepage Distances<\/strong><\/span><\/h3>\n\n\n\nPlacement of High-Voltage Components<\/strong><\/h4>\nHigh-voltage components should be positioned at a sufficient distance from other components and conductive parts of the board to reduce the risk of discharge. Carefully arranging components to maintain clearance improves safety and reliability.<\/p>\n<\/div>\n
\nOptimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Selecting Appropriate Insulation Materials<\/strong><\/span><\/h3>\n<\/div>\n<\/article>\nNow, let\u2019s dive deeper into clearance and creepage distances!<\/p>\n
Ensuring Clearance and Creepage Distances<\/strong><\/span><\/h3>\n\n\n\nPlacement of High-Voltage Components<\/strong><\/h4>\nHigh-voltage components should be positioned at a sufficient distance from other components and conductive parts of the board to reduce the risk of discharge. Carefully arranging components to maintain clearance improves safety and reliability.<\/p>\n<\/div>\n
\nOptimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Placement of High-Voltage Components<\/strong><\/h4>\nHigh-voltage components should be positioned at a sufficient distance from other components and conductive parts of the board to reduce the risk of discharge. Carefully arranging components to maintain clearance improves safety and reliability.<\/p>\n<\/div>\n
\nOptimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Optimizing PCB Layout
\n<\/strong><\/h4>\nOptimizing the layout involves proper placement of signal and power lines. Sensitive circuits should be separated from high-voltage lines, with adequate shielding and ground placement implemented.<\/p>\n<\/div>\n
\nConsidering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Considering Environmental Factors<\/strong><\/h4>\nEnvironmental factors like temperature, humidity, and contaminants significantly affect electrical properties. For example, in high-humidity environments, wider creepage distances are necessary, and material selection should account for specific environmental conditions.<\/p>\n<\/div>\n<\/article>\n
<\/p>\n
Towa Circuit\u2019s Practices for Ensuring
\nClearance and Creepage Distances<\/span><\/h1>\n\nHow Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nClearance and Creepage Distances<\/span><\/h1>\n
How Towa Circuit Defines Minimum Creepage Distance<\/strong><\/h2>\n\uff1cInternal Standards:\uff1e<\/p>\n
According to “JPCA_UB01-2021 Version 4: Electronic Circuit Board Standards,” Section 4.6.2-3 states that the minimum conductor spacing depends on agreements between the parties involved. Thus, Towa Circuit regulates minimum creepage distance based on JIS C6950-1:2012, Section 2.10.4.3 (refer to the table for details).<\/p>\n
<\/p>\n
Conditions\uff1e\uff1e<\/strong> Operating voltage is the RMS value, Pollution Degree 2<\/span>, Material Group IIIa<\/span>
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\nPollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n\u203b1 Generally considered typical use environments.
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n<<Example>>
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n\n\n\n \n <\/div>\n\n\uff1cCASE 1\uff1e<\/strong><\/p>\nWhen there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 2\uff1e<\/strong><\/p>\nAt the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n\n\n\n \n <\/div>\n\n\uff1cCASE 3\uff1e<\/strong><\/p>\nWhen a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\nWhen it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n
We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n
In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\nFor PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Pollution degree classification is specified by the “International Standard IEC60664-1<\/span>“. In general, this indicates the environment in which the equipment is used.<\/p>\n
Pollution Degree 2:<\/strong> Environments where only dry, non-conductive contamination exists \u203b1<\/span> (e.g., offices, labs, homes, control panels)<\/p>\n \u203b1 Generally considered typical use environments. <<Example>> \uff1cCASE 1\uff1e<\/strong><\/p>\n When there are space limitations in the component mounting area, such as at the corners of the board, the required spacing cannot be maintained, so a slit is added to resolve the issue.<\/p>\n<\/p>\n<\/div>\n<\/article>\n \uff1cCASE 2\uff1e<\/strong><\/p>\n At the AC input side of the diode bridge, the pin pitch is fixed, making it impossible to achieve the required spacing. In this case, a slit is added between the pins to create the necessary distance.<\/p>\n<\/p>\n<\/div>\n<\/article>\n \uff1cCASE 3\uff1e<\/strong><\/p>\n When a blank row is inserted between connector pins but the spacing cannot be achieved, empty pins, which should be through holes, are made into pilot holes to provide the necessary spacing.<\/p>\n<\/p>\n<\/div>\n<\/article>\n<\/section>\n When it is not possible to achieve the required creepage distance in PCB design, methods such as adding slits or creatively handling empty pins can be employed. This ensures that proper insulation distance is maintained, resulting in a safe and reliable design.<\/p>\n We focus on detailed design solutions to create noise-resistant PCBs.<\/p>\n In the next issue, we will continue to provide valuable information to meet your design needs. We hope you will send us your design requests to help make your projects even more successful.<\/p>\n Hello, everyone! In this article, we\u2019ll discuss key points for designing noise-resistant PCBs by focusing on clearance and creepage distances. In PCB design, clearance and creepage distances are crucial for noise countermeasures and enhancing reliability. Maintaining proper spacing between signal traces and components, as well as ensuring adequate insulation distances along the surface of the […]<\/p>\n","protected":false},"author":1,"featured_media":1694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_locale":"en_US","_original_post":"https:\/\/towa-circuit.co.jp\/?p=1700","footnotes":""},"categories":[10,2,11],"tags":[],"class_list":["post-2058","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analog","category-info","category-digital","en-US"],"acf":[],"_links":{"self":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/comments?post=2058"}],"version-history":[{"count":6,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions"}],"predecessor-version":[{"id":2151,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/posts\/2058\/revisions\/2151"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media\/1694"}],"wp:attachment":[{"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/media?parent=2058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/categories?post=2058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/towa-circuit.co.jp\/wp-json\/wp\/v2\/tags?post=2058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Pollution Degree 3:<\/strong> Environments with dry, non-conductive contaminants or conductive contaminants such as soil
\u203b2 (e.g., workshops, construction sites)<\/p>\n
\u203b2 Listed for reference purposes.<\/span><\/p>\nExamples of Material Group and Voltage Calculations<\/strong><\/h3>\n
AC100V RMS value:<\/span> 100v X √2 = 141.42…v <\/span>calculated to<\/span> 160v
AC220V RMS value:<\/span> 220v X √2 = 311.126…v <\/span>calculated to<\/span> 320v<\/p>\nMeasures<\/span> when Creepage Distance Cannot Be Achieved<\/strong><\/h3>\n
\n <\/div>\n
\n <\/div>\n
\n <\/div>\n
Aiming for Highly Reliable Electronic Devices<\/strong><\/span><\/h3>\n
<\/p>\n
Next Time…
“Points for Selecting Insulating Materials! The Decisive Factor for Noise Countermeasures”<\/strong>
We’ll be introducing this topic.
Stay tuned~\u2728<\/h2>\n<\/p>\n
Through Honest Work, We Aim to Be a Trustworthy Partner<\/h3>\n
For PCB Design, Choose Towa Circuit<\/a><\/h1>\n","protected":false},"excerpt":{"rendered":"