Molded tantalum, 0.33 µF at 35 V — the decoupling fit
The TAJA334K035RNJ is a Molded tantalum capacitor from the TAJ series, rated 0.33 µF at 35 V with ±10% tolerance — the 15 Ohm ESR is the key derating parameter for ripple current handling in a 1206 case. Operating from -55 to +125 °C, the part covers military and industrial temperature bands — a 35 V rating at 125 °C means the voltage derating factor (typically 50% for MnO₂ tantalum) applies, so a 35 V cap is good for about 17.5 V continuous at high temperature.
This part is still a valid design-in choice for new BOMs.
Surface-mount footprint in 1206
Molded case in 1206 (3216 metric), size code A — the footprint matches standard 1206 solder pads. The 0.126" × 0.063" body sits 0.071" high max; the 15 Ohm ESR at 100 kHz is the specification to check against your ripple current budget.
