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Aneng AN8008 multimeter fuses

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wasedadoc:

--- Quote from: mebel on April 10, 2023, 07:29:53 am ---What type of protection diode is the one near 200mA fuse? I replaced it with standard 1N4007  but I'm not sure.

EDIT

I found it. It's SMBJ6.5CA

--- End quote ---
Quite different from an ordinary diode.  Also note that there are two types - unidirectional and bidirectional.  Important to use the correct one.

floobydust:
It is a TVS and my pic has SMBJ6.8CA although the pc board says "4007". Problem can be the high capacitance upsets pF capacitance measurements- unless that is correctly nulled out in the EEPROM.

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