Molded tantalum capacitor, KYOCERA AVX TAJ series, 47 µF, 20 V, ±20% tolerance, 900 mOhm ESR, -55°C to 125°C, 2917 (7343 Metric) surface-mount package.
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 900mOhm |
| Voltage - rated | 20 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.287\" L x 0.169\" W (7.30mm x 4.30mm) |
| Height - seated | 0.079\" (2.00mm) |
| Package | Tape & Reel (TR) |
| Features | General Purpose |
| Tolerance | ±20% |
| Capacitance | 47 µF |
| Case | 2917 (7343 Metric) |
| Manufacturer size code | Y |
The TAJY476M020RNJ is a molded tantalum capacitor from the TAJ series, rated 47 µF at 20 V with ±20% tolerance and 900 mOhm ESR at 100 kHz.
The 900 mOhm ESR at 100 kHz means this part dissipates ripple current as heat — at 1 A ripple the self-heating is nearly 1 W, so derating the applied voltage to 50% of the 20 V rating is standard practice to stay within the thermal limits at the high end of the -55°C to 125°C range.
The TAJ series are polarized capacitors. The anode (positive) is marked on the molded body. Reversing the polarity can cause catastrophic failure — confirm orientation against the PCB silk screen before placement.
The TAJ series is typically RoHS compliant, but the evidence does not list a specific RoHS status for this order code. Check the manufacturer's latest datasheet or compliance declaration for the exact termination finish.