1500 µF bulk capacitance with 50 mOhm ESR
The TPSE158K004R0050: The 50 mOhm ESR is the defining parameter here — it sets the ripple current capability and the output voltage ripple in a DC-DC converter's bulk cap position. A lower ESR means less self-heating under AC ripple, which directly extends the capacitor's service life in high-frequency switching applications.
Full temperature range and case details
Operating from -55°C to 125°C, this cap covers the full industrial and military temperature envelope — no derating needed for most automotive under-hood or outdoor telecom enclosures. The ±10% tolerance is tighter than the standard ±20% for tantalum electrolytics, which matters when the capacitance value sits inside a filter pole or timing circuit where the tolerance band directly affects the corner frequency.