The TAJR335M010RNJ: This is a molded tantalum capacitor from the TAJ series, 3.3 µF at 10 V with ±20% tolerance. The 8 Ohm ESR is the number that matters most for ripple handling — at 100 kHz the capacitor's self-heating is I² × 8 Ohm, so a 100 mA ripple current produces 80 mW of internal dissipation. That heat has nowhere to go in an 0805 body; keep the ripple current below 150 mA RMS to stay inside the 125 °C rated temperature.
0805 footprint, R case code — layout fit
Size code R means 2.05 mm × 1.30 mm, seated height 1.20 mm max. The 0805 (2012 Metric) land pattern is standard — no via-in-pad required, no thermal pad underneath. The molded body has a clear polarity band on the positive end.
The TAJ series is a standard molded tantalum line with broad distributor coverage, so multi-source availability is typical through independent channels.
Temperature grade — full military band
This capacitor holds its rated capacitance and leakage within spec across the entire band — no derating required at the high end for the voltage rating.