The TPSE108M004R0040: The ESR is specified at 25°C; at -55°C the ESR can rise 2-3x, which matters for cold-start inrush on a 1.8 V or 1.2 V core rail where the voltage headroom is already tight. The E-size code means the maximum case height is 4.3 mm — confirm clearance under the nearest component or heatsink.
KYOCERA AVX TPSE108M004R0040 Tantalum Cap, 1000 µF, 4 V
MPNTPSE108M004R0040
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KYOCERA AVX TPS series molded tantalum capacitor, TPSE108M004R0040, 1000 µF, 4 V, ±20%, 40 mOhm ESR, 2917 (7343 Metric) case, E code, -55°C to 125°C.
$5.4102Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TPS |
| Mounting | Surface Mount |
| ESR | 40mOhm |
| 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) |
| Features | General Purpose |
| Tolerance | ±20% |
| Capacitance | 1000 µF |
| Case | 2917 (7343 Metric) |
| Manufacturer size code | E |
Product details
Frequently asked questions
What is the 40 mOhm ESR rating for on this cap?
The 40 mOhm ESR is the equivalent series resistance at 25°C and 100 kHz. It determines the ripple current rating — lower ESR means higher ripple current capability and lower self-heating. For a 1000 µF cap on a 1.8 V rail, this ESR keeps the ripple voltage under 40 mV at 1 A ripple.