# \#leakage-current

**URL:** https://sierraconnect.protoexpress.com/tag/leakage-current/256.md

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## [What Causes High-Leakage Current in PCBs and How to Prevent It?](https://sierraconnect.protoexpress.com/t/what-causes-high-leakage-current-in-pcbs-and-how-to-prevent-it/3662)

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**Author:** [@Pooja\_Mitra](https://sierraconnect.protoexpress.com/u/Pooja_Mitra)\
**Replies:** 0\
**Last updated:** [October 28, 2025, 2:52pm UTC](https://sierraconnect.protoexpress.com/t/what-causes-high-leakage-current-in-pcbs-and-how-to-prevent-it/3662 "2025-10-28T14:52:43Z")

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Originally published at: https://www.protoexpress.com/blog/what-causes-high-leakage-current-in-pcbs-how-to-prevent-it/ High-leakage current in PCBs is caused by moisture absorption and inadequate creepage and clearan…