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Zener Diode P\N ?

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Clinton

New Member
Hello,

I'm in the process of repairing my Digital Dash and have found the defective part. The part in question is a Zener Diode, and unfortually the only markings it has is 18 and under that 2. Does anyone know what type of Zener this is.

THanks

Clinton
 

ljcox

Well-Known Member
Zener diode

I don't know. I suggest you draw out that part of the circuit and deduce what value it should be.

If you need help, post the circuit and we can help.

Len
 

Nigel Goodwin

Super Moderator
Most Helpful Member
Clinton said:
I'm in the process of repairing my Digital Dash and have found the defective part. The part in question is a Zener Diode, and unfortually the only markings it has is 18 and under that 2. Does anyone know what type of Zener this is.
It's just a pure guess, but is the zener a fairly large one? - it could well be an 18V 2W zener, to help keep nasty big spikes out. If this is the case, it should be directly across the incoming 12V supply - probably after various filtering components.
 
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