# Why Controlled Impedance Really Matters

**URL:** <https://sierraconnect.protoexpress.com/t/why-controlled-impedance-really-matters/160>\
**Category:** Impedance\
**Tags:** controlled-impedance\
**Created:** [September 28, 2023, 6:34pm UTC](https://sierraconnect.protoexpress.com/t/why-controlled-impedance-really-matters/160 "2023-09-28T18:34:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Post date:** [September 28, 2023, 6:34pm UTC](https://sierraconnect.protoexpress.com/t/why-controlled-impedance-really-matters/160/1 "2023-09-28T18:34:19Z")

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Originally published at: [https://www.protoexpress.com/blog/controlled-impedance-really-matters/](https://www.protoexpress.com/blog/controlled-impedance-really-matters/)  
   
Every day, PCB designs and components become smaller, faster – in other words, more complicated. It is now crucial to understand your critical nets and traces, impedances, and how the board impacts the performance of the signal.