The TPSE106K050R0500 is listed as Active by KYOCERA AVX, meaning the manufacturer continues to produce it without a planned end-of-life notice.
10 µF at 50 V — the bulk decoupling sweet spot
Rated 10 µF at 50 V with ±10% tolerance, this tantalum fits power-rail decoupling where the rail sits at 24 V to 48 V and the margin to the 50 V rating covers transients. The 500 mOhm ESR sets the ripple current handling — at 100 kHz the self-heating is manageable for most DC-DC output stages, but the ESR also limits the capacitor's ability to absorb fast load steps compared to a low-ESR polymer.
Molded case, E code, 2917 footprint
This is the standard high-capacitance tantalum footprint — the same land pattern serves the TPS series across the E case.
The capacitance change over this range is typical for tantalum — expect about -10% at -55°C and +15% at 125°C relative to the 25°C value, though the ESR rises at low temperature.