# \#diode
**URL:** https://forumautomation.com/tag/diode/58.md
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## [What is Schottky diode? Explain its applications](https://forumautomation.com/t/what-is-schottky-diode-explain-its-applications/5170)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\
**Replies:** 0\
**Last updated:** [November 12, 2018, 4:19am UTC](https://forumautomation.com/t/what-is-schottky-diode-explain-its-applications/5170 "2018-11-12T04:19:05Z")
A Schottky diode is also known as surface barrier diode , hot carrier diode or hot electron diode. It has a lower power drop across it than a normal p-n junction diode which is due to the diode design. It is a unipolar d…
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## [What is an Optocoupler and How does it Works?](https://forumautomation.com/t/what-is-an-optocoupler-and-how-does-it-works/5428)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\
**Replies:** 1\
**Last updated:** [June 11, 2024, 4:16pm UTC](https://forumautomation.com/t/what-is-an-optocoupler-and-how-does-it-works/5428 "2024-06-11T16:16:58Z")
Optocoupler Optocouplers also known by photocoupler are made of LEDs, photodiodes or phototransistors linking circuits by a short optical path but isolating them electrically hence the name optoisolators . The photocoup…
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## [Difference Between Zener Diode and Diode](https://forumautomation.com/t/difference-between-zener-diode-and-diode/12112)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\
**Replies:** 0\
**Last updated:** [May 30, 2024, 4:32pm UTC](https://forumautomation.com/t/difference-between-zener-diode-and-diode/12112 "2024-05-30T16:32:51Z")
Zener diodes are specifically intended for applications that require accurate voltage regulation & clamping, and they operate predictably in reverse bias at their designated breakdown voltage. Regular diodes, on the oth…
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## [Why is a Freewheeling Diode placed across a Solenoid (of any SDV, ON/OFF Valves, etc.)?](https://forumautomation.com/t/why-is-a-freewheeling-diode-placed-across-a-solenoid-of-any-sdv-on-off-valves-etc/11906)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\
**Replies:** 0\
**Last updated:** [March 25, 2024, 1:00pm UTC](https://forumautomation.com/t/why-is-a-freewheeling-diode-placed-across-a-solenoid-of-any-sdv-on-off-valves-etc/11906 "2024-03-25T13:00:02Z")
What is Freewheeling Diode? A freewheeling diode, which is additionally known as a fly-back diode or a snubber diode, is frequently used to protect electronic equipment connected to a solenoid from voltage spikes (or) tr…
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## [How does Zener phenomenon differ from Avalanche breakdown?](https://forumautomation.com/t/how-does-zener-phenomenon-differ-from-avalanche-breakdown/11025)
**Author:** [@Rabert](https://forumautomation.com/u/Rabert)\
**Replies:** 0\
**Last updated:** [April 1, 2023, 3:27pm UTC](https://forumautomation.com/t/how-does-zener-phenomenon-differ-from-avalanche-breakdown/11025 "2023-04-01T15:27:51Z")
When subjected to conditions of reverse bias, the behaviour of a p-n junction diode may be described using one of two distinct mechanisms: The Zener Breakdown and The Avalanche Breakdown. Both mechanisms lead to the b…
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## [Diode types, applications and symbol](https://forumautomation.com/t/diode-types-applications-and-symbol/5573)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\
**Replies:** 0\
**Last updated:** [December 26, 2018, 2:25am UTC](https://forumautomation.com/t/diode-types-applications-and-symbol/5573 "2018-12-26T02:25:01Z")
Types of diodes Avalanche diode Description: It is a diode (made from silicon or other semiconductor) that is designed to experience avalanche breakdown at a specified reverse bias voltage. The junction of an avalanche d…
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## [Unique structure of PIN diodes and its applications](https://forumautomation.com/t/unique-structure-of-pin-diodes-and-its-applications/5520)
**Author:** [@divyasree](https://forumautomation.com/u/divyasree)\
**Replies:** 0\
**Last updated:** [December 19, 2018, 4:58am UTC](https://forumautomation.com/t/unique-structure-of-pin-diodes-and-its-applications/5520 "2018-12-19T04:58:30Z")
Pindiode A PIN diode has a unique structure with a wide, undoped intrinsic semiconductor region between a p-type semiconductor and an n-type semiconductor region. The p-type and n-type regions are typically heavily dope…