I am trying to identify this bridge rectifier. It is on a control board for a horizontal saw. It is between the single phase 80 VA step down transformer 26 V output and the logic circuit. There is no power on the DC side and the AC side reads 80 VAC using a multimeter. I need to investigate a little more to find out why the transformer is outputting such a high voltage - likely the cause of the bridge-rectifier failure.

  • 1
    \$\begingroup\$ Does it really need to be identified? \$\endgroup\$ Commented Nov 17, 2021 at 19:14
  • \$\begingroup\$ I plan on replacing the component- so identifying the original and obtaining the data sheet will make sure the replacement is compatible. \$\endgroup\$
    – Don J
    Commented Nov 17, 2021 at 19:20
  • \$\begingroup\$ Almost anything in the same size package should have comparable specs. \$\endgroup\$
    – rdtsc
    Commented Nov 17, 2021 at 19:58
  • \$\begingroup\$ The generic part number is RS35. Then you have a voltage rating of 400,600,800,1000V. 400V is adequate for your application. Overvoltage tends to make the bridge rectifier go short circuit. Failing open circuit would be unusual but not unheard of. \$\endgroup\$
    – Kartman
    Commented Nov 17, 2021 at 21:38

1 Answer 1


All bridge rectifiers used in Power Supply products have the same pinout.

You don't really actually need to identify the manufacturer.

Desolder it and test it by a multimeter. There are 4 diodes inside. If the part is not damaged then all 4 diodes will show 0.5 V to 0.7 V.


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