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ESL Calculation From Cap Datasheet - RF Cafe Forums

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Amateur Radio | Antennas | Circuits & Components | Systems | Test & Measurement


Guest
Post subject: ESL Calculation From Cap Datasheet
Unread postPosted: Tue May 17, 2005 2:53 pm

Hi All,

Im trying to get a calculation of the ESL in some tantalum and/or C0G ceramic caps.

Unfortunately, the manufacturers do not plot this data, so I want to extrapolate the ESL using the Impedance vs. Frequency, DF factor to get the ESR, and the capacitance then solving for the inductive reactance and thus the series inductance at frequency omega.

Am I off base here??

Anyone have a better method?

Thanks


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Guest
Post subject: ESL
Unread postPosted: Wed May 18, 2005 4:04 pm

Manufacturers almost always have more data on their product than they print in datasheets. Have you tried calling the applications engineering department of the various capacitor suppliers and asking for the data you need?

Good Luck!
(I was an applications engineer for a semiconductor company years ago, so "your mileage may vary")


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Guest
Post subject:
Unread postPosted: Thu May 19, 2005 9:18 am

What you propose doing is fine.




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