Capacitance, voltage, and automotive qualification
The TAJB475K025TNJ is a 4.7 µF molded tantalum capacitor rated at 25 V, with ±10% tolerance.
Lifetime and ESR at temperature
Lifetime is specified as 2000 hours at 125°C — a standard endurance test for tantalum capacitors. For a 4.7 µF part in a switching regulator output filter, that ESR dominates the impedance at the switching frequency and directly affects output ripple voltage.
Housed in the 1411 (3528 Metric) case, size code B, the body measures 3.50 mm x 2.80 mm with a seated height of 2.10 mm max. The low profile suits dense PCB layouts where height clearance is tight.