22 µF, 20 V molded tantalum — AEC-Q200 on an active line
The TPSB226K020T0400 is a 22 µF ±10%, 20 V molded tantalum capacitor from KYOCERA AVX's TPS series, qualified to AEC-Q200 for automotive applications. Rated from -55°C to 125°C with 2000 hours endurance at the 125°C ceiling, it holds up in under-hood or engine-adjacent environments where ambient temperatures push past 105°C.
Available in 1411 (3528 Metric) case size with Tape & Reel or Cut Tape options; the B-size code matches the 3.50 mm x 2.80 mm footprint common in automotive ECU layouts.
The 400 mOhm ESR at 100 kHz governs ripple current capability in output filtering — for a 1 A load step on a 20 V rail, the self-heating stays within the molded package's thermal limits as long as the ripple current does not exceed the datasheet curve.