Why 45 mOhm ESR matters on a 4 V rail
The TPSD687K004R0045: This TPS series tantalum capacitor delivers 680 µF at 4 V rated with a 45 mOhm equivalent series resistance.
The molded body is self-encased and suited for reflow soldering.
KYOCERA AVX TPSD687K004R0045 Tantalum Cap, 680 µF, 4 V
MPNTPSD687K004R0045
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KYOCERA AVX TPS series, Molded tantalum capacitor, TPSD687K004R0045, 680 µF, 4 V, ±10%, 45 mOhm ESR, 2917 (7343 Metric) package, size code D.
$4.0300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TPS |
| Mounting | Surface Mount |
| ESR | 45mOhm |
| Voltage - rated | 4 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.287\" L x 0.169\" W (7.30mm x 4.30mm) |
| Height - seated | 0.122\" (3.10mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 680 µF |
| Case | 2917 (7343 Metric) |
| Manufacturer size code | D |