Talk:Avalanche diode

Avalanche breakdown

I've written and link the Avalanche breakdown article which covers a lot of what appears in the second paragraph, should this be deleted or rewritten? Astaroth5 14:18, 11 November 2005 (UTC)

Probably could use some rewriting to cover the details of the diode's analysis rather than it's overt function.

Symbol

Zener diode schematic symbol

What's the symbol for an avalanche diode? I've seen one that just has half of the Zener things but I don't want to upload the version I drew as "Image:Avalanche diode.svg" until I know it's correct. — Omegatron 05:22, 4 May 2006 (UTC)

I've done some checking around and uploaded what seems to be the most common symbol in use, although I couldn't find any reference to a BS3939 standard for it Astaroth5 06:58, 4 May 2006 (UTC)

Avalanche diode schematic symbol?

I had seen a different style, and already made it, in the same style as all the other diode symbols I made:

• 
  Diode symbol
• 
  Zener diode symbol
• 
  Tunnel diode symbol
• 
  LED symbol
• 
  Photodiode symbol
• 
  SCR symbol
• 
  Varicap symbol
• 
  Schottky diode symbol

I'm not sure which is more popular. — Omegatron 05:14, 11 September 2006 (UTC)

Since this is almost same as zenner diode by function it shares same symbol both of these symbols are valid for zener diodes. If used in oscillator seem that avalanche diode shares same symbol as Gunn diode or tunnel diode.

"Controlled avalanche rectifier diode"?

For example 1N5059 to 1N5062. What would that be? Wouldn't the avalanche effect make rectification impossible, since such a diode conducts in both directions with enough voltage? Please add. -- 92.224.247.242 (talk) 22:38, 10 February 2013 (UTC)

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Temperature coefficient

The article states that avalanche diodes have a positive temperature coefficient, yet this datasheet of Vishay BYV26 avalanche diodes shows a negative temperature coefficient in both forward and reverse conduction: [1]. All diodes described in the datasheet have breakdown voltages in the hundreds of volts -- well above the 5V threshold under which (according to online sources) a Zener/avalanche diode has a negative coefficient. How come? 46.13.25.245 (talk) 13:52, 25 June 2023 (UTC)

I don't know about avalanche thermal coefficient, but zeners I've used have a zero coeff around 5v2, so I connected say 3 in series for 15v so as to avoid the large coeff of (single) 15v zeners, and tweaked if necessary using low voltage zeners (which have the opposite coeff) 49.183.11.181 (talk) 12:38, 14 March 2024 (UTC)