What this tantalum capacitor is for
Rated 3.3 µF at 25 V with ±10% tolerance, it provides bulk capacitance for 3.3 V or 5 V rails with headroom above the rail voltage. The 3.5 Ohm ESR (Equivalent Series Resistance) governs ripple current handling and self-heating — a higher ESR than polymer types, so derate ripple current below the 25 V limit in high-frequency switcher outputs.
The full military temperature range means the capacitance and ESR stay within specification across the extremes — a cold-start at -55°C does not shift the value outside the ±10% band.
Package and board-fit details
Housed in the B case size (1411 / 3528 Metric), measuring 3.50 mm x 2.80 mm with a seated height of 2.10 mm — standard footprint for 1210-style tantalum chip capacitors.