ESR and temperature — the real selection drivers
The TPSE336K035R0100: The 100 mOhm equivalent series resistance (ESR) is the spec that governs ripple current handling and self-heating in power-supply decoupling — a lower ESR means less voltage ripple at the switching frequency and cooler operation under load. The molded case construction provides mechanical stability during reflow soldering and resists cracking from board flex — a failure mode that shows up as a scorch mark on the board when the tantalum shorts.