330 µF, 16 V, 50 mOhm ESR — bulk cap for high-temp rails
The TPME337K016R0050 is a molded tantalum capacitor from KYOCERA AVX's TPM series, rated 330 µF at 16 V with ±10% tolerance. The headline spec is the 50 mOhm ESR at 100 kHz — low enough to handle the ripple current from a switching regulator output without excessive self-heating, which matters when the cap sits on a 12 V-to-3.3 V rail pulling a few amps. The 2000-hour lifetime at 125 °C and full -55 to +125 °C operating range qualify it for environments where standard tantalums derate or fail — engine-bay electronics, downhole instrumentation, and avionics power stages that see sustained high ambient.
Active lifecycle — no design-in risk
2917 case, E code — standard footprint
The 7.30 mm x 4.30 mm footprint matches a common land pattern used across multiple tantalum suppliers, which simplifies PCB layout and second-source qualification.