68 µF, 10 V, 150 mOhm — TPS series tantalum in D case
The TPSD686M010R0150: The ±20% tolerance is standard for tantalum electrolytics and sets the expected capacitance spread for filter or hold-up designs. Operating temperature spans -55 °C to 125 °C, covering industrial and military-grade environments without derating the voltage at the upper end — a key advantage over commercial-grade parts limited to 85 °C.
ESR and temperature — what they mean for the rail
The 150 mOhm ESR at 100 kHz is the characteristic that governs ripple current handling and self-heating. The TPS series is positioned as a low-ESR commercial tantalum line, trading some leakage current for lower impedance compared to standard tantalum. The molded construction provides mechanical robustness during reflow and in-service vibration, though it lacks the hermetic seal of a wet-tantalum or military-grade part.