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DarpMalone 9th March 2012 02:41 AM

Samwha 8200Mfd / 100v Cap pins
Hi Steve,

I built a linear power supply with these last night and when testing, I noticed a short in the circuit.

According to the label on the caps, pin B is positive (100v), pins A & C are blank and the 4th, (unlabeled) pin is negative. (see the attached photo)

When I do a continuity test on the caps though I see pins B and the unlabeled pin have continuity (this explains the short).

Are these labeled incorrectly or am I missing something?

Thanks for your help.


DarpMalone 9th March 2012 03:59 AM

Well, I guess I should have tested some other caps first before posting this... I guess continuity between + & - poles on a capacitor is normal. Sorry for the fuss

DreadPirate 15th March 2012 11:38 AM

You should read a very high resistance (in the millions of ohms) between + and -.

Coconuts 500 16th March 2012 07:03 PM

Dummy pins and casing is usually connected to -.

cbdb 24th May 2013 08:49 PM

A ohm meter will not give you a proper reading.

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