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Author Topic: Identifying diode (Z33)  (Read 4057 times)

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Offline mortos360Topic starter

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Identifying diode (Z33)
« on: October 31, 2013, 09:57:03 pm »
I got a dead diode here that has following marking on it: AD and Z33... the manfacturer is Diotec.
What can I use a replacement for this diode? 

I have some 1N4004 diodes here, will that do it?

Sorry if I missing important informations here that need to be provided!
Please ask if you need more informations.
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Offline hagster

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Re: Identifying diode (Z33)
« Reply #1 on: October 31, 2013, 10:03:36 pm »
33v zenner maybe. What's the circuit it's in?
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Offline mortos360Topic starter

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Re: Identifying diode (Z33)
« Reply #2 on: October 31, 2013, 10:13:38 pm »
Quote from: hagster on October 31, 2013, 10:03:36 pm
33v zenner maybe. What's the circuit it's in?

This is a remote energency stop device.. the diode is on the power board.. as far as I can tell. its a bit hard to tell really.. but it seems to have a few opto isolators, caps, PCT.
The whole system runs on 24V.

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Offline c4757p

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Re: Identifying diode (Z33)
« Reply #3 on: October 31, 2013, 10:18:36 pm »
Probably a 33V Zener diode to limit the voltage, then.
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Offline mortos360Topic starter

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Re: Identifying diode (Z33)
« Reply #4 on: October 31, 2013, 10:53:59 pm »
So I should be abel to replace it with a 1N4004 as long as I stay under 24V?
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Offline Simon123

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Re: Identifying diode (Z33)
« Reply #5 on: October 31, 2013, 10:58:45 pm »
Is it in to-92 package or normal axial one?
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Offline mortos360Topic starter

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Re: Identifying diode (Z33)
« Reply #6 on: October 31, 2013, 11:00:45 pm »
Quote from: Simon123 on October 31, 2013, 10:58:45 pm
Is it in to-92 package or normal axial one?

Normal black axial package
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Offline w2aew

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Re: Identifying diode (Z33)
« Reply #7 on: November 01, 2013, 02:21:49 am »
Quote from: mortos360 on October 31, 2013, 10:53:59 pm
So I should be abel to replace it with a 1N4004 as long as I stay under 24V?

No, if the diode is a zener, then a 1N4004 will NOT be a suitable replacement.  Why not send a note to diotec and ask them what the part number is based on these markings?  Then, you can get an exact replacement from them, or find a suitable replacement from another manufacturer based on the specs of the original part.
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Offline mortos360Topic starter

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Re: Identifying diode (Z33)
« Reply #8 on: November 01, 2013, 10:50:20 am »
Quote from: w2aew on November 01, 2013, 02:21:49 am
Quote from: mortos360 on October 31, 2013, 10:53:59 pm
So I should be abel to replace it with a 1N4004 as long as I stay under 24V?

No, if the diode is a zener, then a 1N4004 will NOT be a suitable replacement.  Why not send a note to diotec and ask them what the part number is based on these markings?  Then, you can get an exact replacement from them, or find a suitable replacement from another manufacturer based on the specs of the original part.

Today is a holiday here in europe and I was hoping to get it up and running till sunday since I need it for a test.. but I found another solution for that tes, so Ill send the device for repair.
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Offline Simon123

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Re: Identifying diode (Z33)
« Reply #9 on: November 01, 2013, 11:16:15 am »
Sometimes you can get electronic components on fleamarket(vcr could have 33volt z diodes cause it needs it for modulator).

Btw, hello from Slovenia.
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