| Electronics > Projects, Designs, and Technical Stuff |
| Identify diode part number |
| (1/1) |
| JohnnyP:
I'm reverse engineering a circuit and need to know what diode they are using. It's an SMB size. In the top row it says R 1 7 In the bottom row it says fpA42 |
| jhpadjustable:
If you search "smd marking r17" on the web, you may find an SMD marking code book with the answer. Does a 1N4007 seem about right for the circuit? https://www.onsemi.com/products/discretes-drivers/diodes-rectifiers/rectifiers/mra4007 |
| JohnnyP:
Just looked it up on Mouser. I think you've got it. I used 800v S2K/KA from Diodes Inc thinking they would be better. Now I have to figure out why they didn't work. |
| JohnnyP:
Welp, wasn't the diodes. I think I know what's going on... |
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