47 µF at 10 V with 100 mOhm ESR — the bulk-decoupling parametric
The TPSD476K010H0100 is a molded MnO2 tantalum capacitor from the TPS series, rated 47 µF at 10 V with an ESR of 100 mOhm. The ESR is the load-bearing spec for power rail filtering — it sets the ripple current capability and the self-heating under AC load. At 100 mOhm, this part handles roughly 1.2 A ripple current at 85°C before the internal temperature rise exceeds the derating curve; a lower ESR part would carry more ripple, a higher ESR part less. For an RC timing circuit, the ±10% plus the temperature coefficient of the MnO2 dielectric would stack enough error to require a trim or a tighter-tolerance dielectric like C0G.
Temperature range and deployment context
Rated for -55°C to 125°C, this is a full industrial/military temperature-grade part. In a motor drive enclosure that sees 85°C internal ambient, the capacitor operates with margin; at -40°C cold start, the ESR rises (typical MnO2 behavior) but the capacitance remains within spec. The molded case (type: Molded) provides mechanical protection against board flex and vibration — relevant for an automotive ECU or a downhole tool where the PCB sees shock. Surface mount in the 2917 (7343 Metric) footprint, D case code per the manufacturer's sizing. The tape-and-reel packaging (TR) indicates it ships on 13-inch reels for automated pick-and-place.
Active lifecycle — no BOM risk for new builds
Lifecycle status is Active per the manufacturer. Sourced to order through independent distribution; availability and current pricing confirmed at RFQ. The TPS series is a standard MnO2 tantalum line from KYOCERA AVX, so multi-source stocking is typical — lead time varies with reel quantity and factory backlog, but the active status means no allocation risk.