# HDI PCB component clearance

**URL:** <https://sierraconnect.protoexpress.com/t/hdi-pcb-component-clearance/846>\
**Category:** Components\
**Created:** [January 10, 2024, 2:12pm UTC](https://sierraconnect.protoexpress.com/t/hdi-pcb-component-clearance/846 "2024-01-10T14:12:35Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Henry](https://avatars.discourse-cdn.com/v4/letter/h/df705f/32.png) [@Henry](https://sierraconnect.protoexpress.com/u/Henry)\
**Post date:** [January 10, 2024, 2:12pm UTC](https://sierraconnect.protoexpress.com/t/hdi-pcb-component-clearance/846/1 "2024-01-10T14:12:35Z")

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What is the ideal component clearance for an HDI board operating at 150 V?

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**Author:** ![BerndKruger](https://avatars.discourse-cdn.com/v4/letter/b/a5b964/32.png) [@BerndKruger](https://sierraconnect.protoexpress.com/u/BerndKruger)\
**Post date:** [February 9, 2024, 2:27pm UTC](https://sierraconnect.protoexpress.com/t/hdi-pcb-component-clearance/846/2 "2024-02-09T14:27:36Z")

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Typical clearance distance for an HDI board operating at 150 V is 20 mil.