33 µF at 25 V with 65 mOhm ESR — what the ratings mean
The TPMD336M025R0065: 33 µF capacitance at 25 V rated voltage gives you about 20 µF of effective capacitance after a 50 % derating for a 12 V rail — enough bulk storage for a small DC-DC converter output or a local decoupling bank on a sensor module. The 65 mOhm ESR is the key spec for ripple handling: at 100 kHz, the self-heating from ripple current stays low enough that the capacitor can sit next to a switching regulator without a thermal derating penalty in most board layouts.
Rated -55 to 125 °C, this tantalum cap fits the military temperature band — avionics black boxes, downhole logging tools, and satellite power buses all run in that range. The molded case holds up to thermal cycling without cracking the dielectric.