Diode marking code. Need help
Diode marking code. Need help
(OP)
I am repairing a 220VAC/5VDC power supply for a router. I am looking for to identify a through-hole diode with marking code 2 18 (printed in two rows: first row 2, second row 18) that I marked with a ? on the photo attached. On this photo you can see the diode at the upper left corner and the PCB of the power supply where I drawed part of the circuit (High Voltage section) to help understanding which diode could be it. thanks in advance for any help!





RE: Diode marking code. Need help
Also, why not just find a replacement power supply? If it's not more than 2A current output, then you should be able to easily repurpose another surplus 5VDC PS, perhaps just splicing or replacing the output cable. 5VDC adapters (power supplies) up to 2A are extremely common.
RE: Diode marking code. Need help
RE: Diode marking code. Need help
A different diode when the design already has two of the most common types ever used in it, 1N4148 and 1N4004.
Makes me think it might be a zener or not a diode at all.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Diode marking code. Need help
Benta.
RE: Diode marking code. Need help
RE: Diode marking code. Need help
RE: Diode marking code. Need help
RE: Diode marking code. Need help
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If we learn from our mistakes I'm getting a great education!
RE: Diode marking code. Need help
The natural resilience of the componets has been use up once already !
RE: Diode marking code. Need help
RE: Diode marking code. Need help
RE: Diode marking code. Need help
Keith Cress
kcress - http://www.flaminsystems.com