I been looking online and can't find this data sheet for a 20u65ct.
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Re: Need data sheet
You can tell the specs from those numbers on the chip.
schottky barrier rectifier (or two schottky diodes in a package with the cathode common)
20 is maximum 20 Amps
65 is 65v reverse voltage.
Replace with anything that has 20a minimum, around 65v or more, in a package that's insulated (no metal tabs etc) or get even something with metal on the backside but then make sure you insulate the part with some mica sheet and use plastic spacer for screw etc etc
For example these may work:
http://www.digikey.com/product-detai...NTU-ND/1054928
http://www.digikey.com/product-detai...GOS-ND/3195253
http://www.digikey.com/product-detai...028-ND/2165213
http://www.digikey.com/product-detai...100-ND/2615588
etc etc :
http://www.digikey.com/product-searc...arrays/1377014
(select 1 pair common cathode, then filter by current and voltage)
Here's the actual datasheet for the part:Last edited by mariushm; 11-23-2013, 12:48 PM.
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Re: Need data sheet
That could be OK, the voltage rating on those parts just has to be ABOVE the voltage going through them, and usually it's a good practice to go 2-3 times the operating voltage. They probably went with 65v rated parts because those were the cheapest they could get.
It could be perfectly fine for one to have 18v and the other one to have 12v, it depends on the design.
Just use your multimeter in diode mode and test the two diodes for shorts, if they're not shorted it's a good part.
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