Products > Test Equipment
East Tester ET3502 LCR-Bridge
KungFuJosh:
Why is the Rs value so far off between the two devices?
Martin72:
This is the case with the capacitor and I can't explain it to you at the moment.
In addition, both are wrong.
While the 82 and 86mOhms are correct for the choke, the capacitor would be in the three-digit kilo-Ohm range.
Edit forget that thing, Rs should be equal to ESR.
Martin72:
Kemet has a nice simulation tool for their capacitors.
Both LCRs measured the impedance of just under 160kOhm correctly, but the ESR is 3.3kOhm.
https://ksim3.kemet.com/capacitor-simulation?pn=C1206C100FGGACTU&disty=mouser
KungFuJosh:
If the chart is correct, both meters failed ESR (Rs) measurement. Unless the cap is faulty, and then at least one still failed. 😉
Martin72:
You can assume that the manufacturer's simulation is correct.
The two show fantasy values, for whatever reason, but we have often discussed the subject of ESR.
At 1Mhz, the actual test frequency for this value, the ESR would be around 1kOhm....
What I don't really understand is that the primary value and the impedance are measured correctly, but some secondary parameters, as can be seen now, are not.
Whether this is really different in more expensive devices....
It's about time you got the Hioki up and running.
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