This TAJB475K020A is a 4.7 µF capacitor rated at 20 V DC, with ±10% tolerance. That voltage headroom is typical for a 12 V rail or a 5 V supply with margin — the 20 V rating covers transients without derating concerns.
ESR and ripple handling
With a 3 Ohm ESR, this capacitor is suited for general-purpose decoupling and filtering where moderate ripple current is expected. The ESR value is a key parameter for estimating self-heating and ripple voltage in power supply outputs.
Housed in a 1411 (3528 Metric) / 1210 case, size code B, with dimensions 3.50 mm x 2.80 mm and a seated height of 2.10 mm.