At my last job, we found that +/-5% tolerance Wima film caps not as advertised, with tolerance variation up and just past +/-10%, and unsuitable for precision design.
This measured on a Fluke/Philips LCR meter and double checked with a Fluke 79 portable DMM.
At my last job, we found that +/-5% tolerance Wima film caps not as advertised, with tolerance variation up and just past +/-10%, and unsuitable for precision design.
This measured on a Fluke/Philips LCR meter and double checked with a Fluke 79 portable DMM.
I am surprised! I have noticed that the caps are sorted. Example +/-10% caps are actually +10 to +5% and -5 to -10%. And the +/-5% caps have the +/2% caps sorted out first.