What this molded tantalum cap does on your board
The F381A225MMA is a 2.2 µF ±20% molded tantalum capacitor rated at 10 V in the 0603 (1608 Metric) case size. It belongs to the F38 series from KYOCERA AVX, a general-purpose line for surface-mount decoupling and bulk filtering where space is tight. The 500 mΩ ESR at 100 kHz means this part can handle moderate ripple currents in output filters without excessive self-heating, but the 1000-hour lifetime at 85°C sets a practical ceiling for continuous high-temperature exposure. Operating from -55°C to 105°C, it suits industrial and automotive cabin environments where the board sees temperature swings but not sustained engine-bay heat.
F381A225MMA carries an Active product status from KYOCERA AVX. Sourced per RFQ — no stock-holding claim, but the supply channel is open.