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What is a zener diode and how does it work? | Intermediate Electronics

We've talked about the PN junction of a diode in several videos, describing how a diode works when forward biased, reverse biased, or just at equilibrium. In this video, we talk about what a Zener diode is, how it's different, why you usually reverse bias a Zener diode, and what's going on at the semiconductor level. This video is a great theoretical description and lays the groundwork for a practical demonstration of the usage of a Zener diode. There's a great written tutorial that accompanies this video as well on CircuitBread.com - https://www.circuitbread.com/tutorial... Subscribe to CircuitBread for more videos on intermediate electronics! Table of Contents: 0:00 Introduction 0:25 Why is it called a Zener diode? 0:57 How does a Zener diode act when reverse biased? 1:32 What are the different types of reverse breakdown? 2:30 What is the Zener knee and what happens as the reverse voltage is increased? For electronics tools, tutorials, equations and more check out our site: https://www.circuitbread.com And check out our Friends of CircuitBread, who offer special discounts, product samples, resources and more to our users: https://www.circuitbread.com/friends CircuitBread is joining the fight to help people more easily learn about and use electronics. With an ever-growing array of equations, tools, and tutorials, we're striving for the best ways to make electronics and electrical engineering topics more accessible to everyone. Connect with CircuitBread: Instagram ➤   / circuitbread   Facebook ➤   / circuitbread   Twitter ➤   / circuitbread