The TPSD157K016Y0100: The 100 mOhm ESR at 150 µF and 16 V rated voltage means this TPS-series molded tantalum handles the ripple current of a 12 V buck converter output without the capacitor self-heating beyond its 125 °C ceiling — a common failure point when a lower-ESR ceramic cracks under DC bias and the tantalum takes the ripple alone. The 2917 (7343 Metric) case with D-size code delivers the capacitance in a footprint that matches standard 12 V rail decoupling layouts; the 0.122-inch seated height clears most mezzanine card gaps.
-55 to +125 °C — military temp, not just industrial
Rated across the full -55 to +125 °C range, this capacitor is qualified for environments where the ambient swings past 85 °C — avionics power buses, downhole logging tools, and satellite secondary-side decoupling see this band. The molded case and ±10 % tolerance keep the capacitance stable over temperature; the 100 mOhm ESR is the figure to budget for ripple-current derating above 85 °C per the manufacturer's derating curve.