---
title: "Discussion on \"What Is a Decoupling Capacitor? (Values, Placement, and Why Your Chip Resets Without One)\" | Hashnode"
description: "Discussion on \"What Is a Decoupling Capacitor? (Values, Placement, and Why Your Chip Resets Without One)\". A decoupling capacitor is a tiny local battery beside a chip power pin. Why 100 nF, why it must sit close to the pin, which leg goes to ground, decoupling vs bypass."
url: "https://hashnode.com/posts/what-is-a-decoupling-capacitor-values-placement-and-why-your-chip-resets-without-one/6af4111f4445d959e76ba9d1"
---

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# [What Is a Decoupling Capacitor? (Values, Placement, and Why Your Chip Resets Without One)](https://digicirq.hashnode.dev/what-is-a-decoupling-capacitor-values-placement-and-why-your-chip-resets-without-one?utm_source=hashnode&utm_medium=feed)

A decoupling capacitor is a tiny local battery beside a chip power pin. Why 100 nF, why it must sit close to the pin, which leg goes to ground, decoupling vs bypass.

1h ago · 5 min read · digicirq.hashnode.dev  
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Electronics, explained one circuit at a time. Written guides to every DigiCirq video.

DigiCirq is a faceless, diagram-only channel: short animated explainers on how electronics, Arduino, microcontrollers and the apps on your phone really work. Each post here is the written guide to one video, with the numbers worked out and something to try on your own bench. Videos: youtube.com/@digicirq

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