pentiumspeed wrote: It is about 120Khz signal and is measured by the DAC on the chip and reported in ESR value and you check against good values chart.
Yes, I know how they work.
I have one of the typical entry level I built from a kit, a Sencore Z-Meter and a newer professional one that retailed for around $850 when I got it.
If I had to chose 1 it would be the entry level because it's far easier to use and it gets the job done.
I kind of read right past that quoted part.
120kHz is an odd number to see for an ESR meter. Are you sure you didn't mean 120Hz?
For Low ESR motherboard caps the Ripple and Impedance ratings shown in the datasheets assume the test frequency is 100kHz.
If you are not using 100kHz there are conversion factors for other frequencies in the datasheet somewhere. (There should be anyway.)
That chart is for general purpose caps and it doesn't always work well for low ESR caps.
I haven't looked at one of those in a long time though, so maybe they have changed the charts.
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