What the 47 µF / 35 V rating means for your rail
The TPSE476K035T0250V: That voltage rating gives you about 50% derating on a 24 V supply rail — standard practice for tantalum to avoid surge failures on power-up. The 250 mOhm ESR at 100 kHz is the key spec for switching-regulator output filtering — it limits ripple current heating and keeps the capacitor from becoming a self-heating resistor in a 500 kHz buck converter.
Automotive-grade — AEC-Q200 and 125°C life
AEC-Q200 qualification means this cap passed the automotive stress battery: thermal shock, moisture resistance, vibration, and solder heat. It is rated for 2000 hours at 125°C, which covers the under-hood ambient in most passenger vehicles.
Package and board-fit — 2917 E-case
It matches the common tantalum E-case land pattern used across automotive and industrial PCB layouts. Surface-mount package means rework requires hot air or a soldering station. Polarity marking is on the top — the anode stripe is clearly indicated, so orientation is straightforward even without a bench microscope.
Sourcing and lifecycle — active production
The part is sourced through authorized and independent channels; lead time is quoted per RFQ.