Zener diode is like a normal diode, but instead of being destroyed by a big reverse voltage, it lets electricity through. The voltage needed for this is called the breakdown voltage or Zener voltage. Because it can be built with a known breakdown voltage, it can be used to accurately measure voltage.
References[change | change source]
|Wikimedia Commons has media related to Zener diodes.|
- "Zener Diode". Retrieved 31 May 2012.