KYOCERA AVX TAJ series, Molded, 4.7 µF, 25 V, ±10%, 1.5 Ohm ESR, -55°C ~ 125°C, 1411 (3528 Metric) package, TAJB475K025RNJ
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 1.5Ohm |
| Voltage - rated | 25 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.138\" L x 0.110\" W (3.50mm x 2.80mm) |
| Height - seated | 0.083\" (2.10mm) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 4.7 µF |
| Case | 1411 (3528 Metric), 1210 |
| Manufacturer size code | B |
The TAJB475K025RNJ is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated at 4.7 µF and 25 V with ±10% tolerance.
Housed in the 1411 (3528 Metric) case, size code B, with dimensions 3.50 mm x 2.80 mm and a seated height of 2.10 mm max. Surface-mount assembly — the 0.083-inch height fits under low-profile components on a dense PCB.
Within the TAJ series, the closest alternative is another B-case (3528 metric) 4.7 µF tantalum with the same 25 V rating and ±10% tolerance. The ESR may differ by lot or manufacturer — confirm the 1.5 Ohm spec against the BOM requirement before substituting.
No — a 10 V rated capacitor would lack the necessary derating margin on a 12 V rail and would risk catastrophic failure due to surge current. The 25 V rating is the correct choice for any rail above 10 V.