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Date: | Wed, 18 Jul 2018 12:49:20 +0000 |
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Check to see if the capacitors are counterfeit.
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Guy Ramsey
Sent: Wednesday, July 18, 2018 7:00 AM
To: [log in to unmask]
Subject: [TN] capacitor measurement
I got pulled into a Receiving Inspection problem. Our test instrument, an
old HP 4192A impedance meter, and a newer Instek 6020 tell us that our X5R
capacitors are out of spec.
A 100uF, 10%, 6.3V capacitor measures between 25% and 30% below the nominal
value. The instruments have Kelvin probes and are zero calibrated at
frequrency, 120Hz the test waveform is 500mV rms.
Does anyone have any advise?
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