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I'm trying to replace a bad diode in my Chevrolet Captiva C100 rear wiper motor circuit board.

The marking on the SMD diode says SM 03 and I could not cross reference the marking with the correct type of replacement diode.

The good diode has forward voltage around 0.632V and its physical dimensions are 4.0mm x 2.5mm x 2.0mm.

Any help to identify the diode is much appreciated.

enter image description here

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  • \$\begingroup\$ How many pins are present and where are they placed ? A 3mm long diode with three pins -> digchip.com/datasheets/parts/datasheet/284/SM03-TP-pdf.php \$\endgroup\$
    – AJN
    Jun 21, 2020 at 13:38
  • \$\begingroup\$ There seems to be an \$\Omega\$ symbol on the device just below the 03 ? \$\endgroup\$
    – AJN
    Jun 21, 2020 at 13:42
  • \$\begingroup\$ There are only two pins, one at the top and one at the bottom (in the picture) The symbol below the 03, I think it's the logo of the manufacturer, not an impedeance symbol. \$\endgroup\$ Jun 21, 2020 at 16:41

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It will be an S1M diode from Vishay (General Semiconductor logo). SMD version of a 1N4007 diode.

https://www.vishay.com/docs/88711/s1.pdf

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  • \$\begingroup\$ Thank you very much for your help... \$\endgroup\$ Jun 22, 2020 at 5:36

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