Sizing a 0.33 µF 35 V tantalum for the rail
The TAJA334K035K is a molded tantalum capacitor from the TAJ series, rated 0.33 µF at 35 V with ±10% tolerance.
ESR and ripple current budget
With 15 Ohm ESR, this capacitor's ripple current capability is limited. In a low-frequency filter or bulk decoupling role the ESR is acceptable, but for a switching regulator output the self-heating from ripple current needs checking against the datasheet's ripple current rating.
Housed in a 1206 (3216 Metric) case, size code A, the part measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm. The surface-mount footprint is standard — no via-in-pad or special land pattern required.
