6.8 µF, 35 V, 150 mOhm — the bulk decoupling numbers that matter
The TPSD685K035R0150: The 150 mOhm ESR (Equivalent Series Resistance) is the spec that governs ripple current capability and self-heating — a lower ESR means the cap runs cooler under the same AC ripple, which directly affects long-term reliability in a DC-DC converter output filter or a processor bulk decoupling bank. Rated for -55 °C to 125 °C, this part covers the full industrial temperature envelope, so it fits in outdoor telecom gear, motor-drive control boards, and automotive under-hood modules that see the full range.
What the 150 mOhm ESR means for your rail
At 150 mOhm ESR, the self-heating from a 1 A RMS ripple current is I²R = 0.15 W — that is the internal temperature rise above ambient before any derating.