The TAJC335M035SNJ: The 2.5 Ω ESR at 25 °C sets the ripple current ceiling: at 100 kHz, the self-heating from ripple current must stay within the 125 °C max operating temp — a practical derating check for any switching supply output.
-55 to 125 °C — avionics and downhole deployment
Rated across the full military temperature range, this cap fits boards that see engine-bay heat soak or cold-soak at altitude — the molded case and 125 °C rating keep it reliable where commercial tantalums soften. The 2312 (6032 Metric) case size, 6.00 mm x 3.20 mm footprint with 2.80 mm seated height, is a common pad layout — no board spin needed if you are replacing a C-case tantalum from another manufacturer.
Active production — no obsolescence watch
The TAJ series is a broad, long-running line, so second-source equivalents from other C-case tantalum suppliers are straightforward to qualify.