47 µF, 25 V — the rail-fit numbers
The 25 V rating gives headroom on a 12 V or 5 V rail; on a 24 V rail the 80% derating rule (20 V working) still leaves margin for transients. ESR is 900 mOhm — typical for a D-case tantalum at this capacitance and voltage. That ESR matters for ripple current handling: at 100 kHz the self-heating stays manageable, but a high-ripple SMPS output may need a lower-ESR polymer or multiple caps in parallel.
This cap fits avionics power buses, satellite payload rails, downhole instrumentation, and outdoor telecom that sees -40°C cold starts and 105°C enclosure soak.
D case, 2917 (7343 metric), 7.30 mm x 4.30 mm footprint, seated height 3.10 mm max. The molded body is surface-mount with a standard reflow profile; the large pad area under the cap needs a solid solder fillet on the anode end to handle the mechanical stress from thermal cycling.
The TAJ series is widely stocked, so lead times are typically short for this common case size.