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Is this a signal diode or a zener?
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Topic: Is this a signal diode or a zener? (Read 500 times)
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NivagSwerdna
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Is this a signal diode or a zener?
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on:
September 16, 2021, 04:26:07 pm »
Could this be a signal diode?
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Manul
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Re: Is this a signal diode or a zener?
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Reply #1 on:
September 16, 2021, 04:35:35 pm »
It is likely 1N4148, is there also "41" written on the other side?
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NivagSwerdna
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Re: Is this a signal diode or a zener?
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Reply #2 on:
September 16, 2021, 05:01:40 pm »
Stupidly I put it back before taking photos of the other side... but at an oblique angle...
Looks like what I thought were just lines could be a 41!
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NivagSwerdna
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Re: Is this a signal diode or a zener?
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Reply #3 on:
September 16, 2021, 05:04:28 pm »
What about this one...
Looks like 3V9... so that would be a zener even though it looks similar? The board marking is a bit ambiguous due to the coincidence with the square?
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Gyro
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Re: Is this a signal diode or a zener?
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Reply #4 on:
September 16, 2021, 05:29:46 pm »
Yes, a 1N4148 and a 3V9 400mW zener.
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Best Regards, Chris
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