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Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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26th Feb 2021, 10:07 am | #1 |
Triode
Join Date: Jan 2017
Location: Glasgow, Scotland, UK.
Posts: 33
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What Do the Markings Mean on This Zener Diode?
Hello,
I have two images of a Zener diode, which are not very clear, I'm afraid. On one side of the diode is the letter 'Z' and on the other side is the number '12'. Could someone tell me what the symbols mean? I presume Z stands for Zener. Thank you in advance. |
26th Feb 2021, 11:22 am | #2 |
Hexode
Join Date: Oct 2019
Location: Weymouth, Dorset, UK.
Posts: 473
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Re: What Do the Markings Mean on This Zener Diode?
Probably a 12volt zener.
Z = Zener and 12 being the value. |
26th Feb 2021, 11:42 am | #3 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,549
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Re: What Do the Markings Mean on This Zener Diode?
If you want to check it (assuming it's not short or open already), just connect it to a supply of around 15V with a 1k in series, voltmeter across the diode and the meter should read the zener voltage. Make sure the diode is reverse-biased or it will behave like a normal diode. The 1K resistor is simply to limit the current through the diode.
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26th Feb 2021, 11:30 pm | #4 |
Triode
Join Date: Jan 2017
Location: Glasgow, Scotland, UK.
Posts: 33
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Re: What Do the Markings Mean on This Zener Diode?
Thank you everyone for your great answers. Everyday I'm learning something new about this great subject.
Please close this thread. Thank you. |