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Old 9th March 2012, 02:41 AM   #1
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Default 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)

Click the image to open in full size.

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.

Justin
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Old 9th March 2012, 03:59 AM   #2
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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
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Old 15th March 2012, 11:38 AM   #3
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You should read a very high resistance (in the millions of ohms) between + and -.
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Old 16th March 2012, 07:03 PM   #4
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Dummy pins and casing is usually connected to -.
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Old 24th May 2013, 08:49 PM   #5
cbdb is offline cbdb  Canada
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A ohm meter will not give you a proper reading.
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