10 µF at 50 V – the rail filter that stays rated
TAJD106M050TNJV is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated 10 µF at 50 V in a 2917 (7343 Metric) case. That 50 V rating gives you headroom on a 24 V or 28 V bus — the derating rule of thumb for solid tantalums is 50 % of rated voltage, so this part comfortably filters a 24 V rail without pushing the dielectric stress limit.
AEC-Q200 – built for the engine bay and beyond
AEC-Q200 qualification means this capacitor passed the automotive stress tests: temperature cycling, moisture resistance, mechanical shock, and vibration. That puts it in the under-hood temperature band — an ECU or transmission controller that sees 105°C ambient still has margin to the 125°C ceiling.
The ESR is 800 mOhm at 100 kHz. For a buck converter switching at 400 kHz, that ESR sets the output ripple voltage: at 1 A ripple current, expect 800 mV of ripple across the cap. If your rail needs lower ripple, you parallel two of these or step up to a lower-ESR polymer tantalum. The 2917 case (7.30 mm x 4.30 mm, 3.10 mm seated height) is a standard footprint — the same land pattern works for the D-size polymer alternatives without a board spin.
Lifecycle status is Active — KYOCERA AVX is still manufacturing this order code. For a BOM that needs this exact capacitance and voltage in the 2917 case, the supply line is open.