Ceramic, tantalum, and electrolytic capacitor comparison

in parts by DP | 3 comments

Arhi made use of his precision LCR meter to measure capacitance and ESR values of ceramic, tantalum, and electrolytic capacitors. He made his measurements at various frequencies to help him graph the changes to the values over a wide frequency range.

From the graph it can be extrapolated that the ceramic capacitors have the lowest ESR values at any frequency up to the measured 100KHz. While the tantalum capacitors seem to be the most stable of the group.

Via the forum.

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Comments

  1. arhi says:

    Note that 10uF is not your typical ceramic capacitor :D … I’ll do the same thing with 100n in next few days (100n is kinda the most used ceramic cap in digital electronic)

  2. rsdio says:

    I came across an article comparing ceramic, tantalum, and aluminum electrolytic caps – primarily focused on USB applications. Unfortunately, I lost the URL and misplaced the PDF. If anyone has seen such an article (the authors anointed aluminum electrolytic caps FTW), please let me know.

    • arhi says:

      aluminium ones are best on the usb as they have highest esr of all.. you know you have to limit the current on the usb and if you have a large ceramic the inrush will be too high and it will break usb standard…

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