Capacitance, voltage, and ESR — the three numbers that size the decoupling
The TAJE227M006RNJ: 220 µF at 6.3 V with ±20% tolerance — this is a bulk storage cap for a 3.3 V or 1.8 V rail where the ripple voltage budget is tight and the load step pulls tens of milliamps. The 400 mΩ ESR at 100 kHz sets the self-heating floor: at 1 A ripple current the internal temperature rise is about 0.4 W × Rth, which the -55°C to +125°C range absorbs without derating.
Package and footprint — 2917 E case on the board
Surface-mount 2917 (7343 Metric) package, E case code per the TAJ series. The 7.30 mm × 4.30 mm footprint with 4.30 mm seated height fits standard reflow profiles. The molded body gives good coplanarity for pick-and-place; the termination is matte tin over nickel barrier, compatible with lead-free solder processes.
Lifecycle — active production, no obsolescence watch
Sourced per RFQ — availability confirmed at quote time.