The TPSE686K025K0125: The 125 mOhm ESR at 100 kHz is the key spec for a bulk-decoupling role — it sets the ripple current capability and the self-heating under load.
Temperature range and PCB footprint
Rated for -55 °C to 125 °C operating temperature, so it sits comfortably in an engine-bay ECU or an outdoor telecom power supply without derating at the high end. Surface-mount assembly; the molded package is compatible with standard reflow profiles.
