The TAJA156K006RNJ: This is a 15 µF molded tantalum capacitor rated at 6.3 V, ±10% tolerance — a standard value for 3.3 V or 5 V rail decoupling where the derating rule (typically 50% of rated voltage) leaves comfortable margin. The 1206 (3216 Metric) case size is a common footprint, making it a drop-in fit for many existing PCB layouts without pad redesign.
Temperature range and ESR for harsh environments
The 3.5 Ohm ESR is typical for a size-A case tantalum at this capacitance — it limits ripple current handling, so check the ripple current budget if the capacitor sits on a switching regulator output.
Confirm availability and current pricing at RFQ.