The TPME687K004R0018: The 18 mOhm ESR sets the ripple-current ceiling for this 680 µF tantalum. At a 100 kHz switching frequency, the self-heating from ripple current is I² × 18 mOhm; a 2 A ripple component dissipates 72 mW, well within the package's thermal budget for a 2917 case. Below 18 mOhm, the capacitor can handle higher AC current without exceeding the 125 °C upper limit.

TPME687K004R0018 KYOCERA AVX 680 µF Molded Tantalum
MPNTPME687K004R0018
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KYOCERA AVX TPM series, Type Molded, 680 µF ±10%, 4 V rated, 18 mOhm ESR, -55 to 125 °C, 2917 (7343 Metric) package, E case code
$6.6000Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TPM |
| Mounting | Surface Mount |
| ESR | 18mOhm |
| 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 | 0.169\" (4.30mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 680 µF |
| Case | 2917 (7343 Metric) |
| Manufacturer size code | E |
Product details
Frequently asked questions
What is the ESR of TPME687K004R0018?
The equivalent series resistance (ESR) is 18 mOhm. This low ESR supports higher ripple current handling and lower self-heating in bulk decoupling or output filter applications.