The TAJA225M010RNJ: The 7 Ohm ESR is the dominant loss term for this 2.2 µF tantalum in a 1206 case — it sets ripple current rating and self-heating, which is the first check for a BOM engineer comparing against a lower-ESR polymer or MLCC alternative.

TAJA225M010RNJ KYOCERA AVX 2.2 µF 10 V Tantalum Capacitor
MPNTAJA225M010RNJ
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KYOCERA AVX TAJ series, Molded tantalum capacitor, 2.2 µF ±20%, 10 V rated, 1206 (3216 Metric) case, 7 Ohm ESR, -55°C to 125°C operating range.
$0.3500Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 7Ohm |
| Voltage - rated | 10 V |
| Operating temperature | -55°C ~ 125°C |
| Size (Dimension) | 0.126\" L x 0.063\" W (3.20mm x 1.60mm) |
| Height - seated | 0.071\" (1.80mm) |
| Package | Tape & Reel (TR) Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±20% |
| Capacitance | 2.2 µF |
| Case | 1206 (3216 Metric) |
| Manufacturer size code | A |
Product details
Frequently asked questions
Can TAJA225M010RNJ be used as a replacement for TAJA225M010ANJ?
The two ordering codes share the same capacitance, voltage, tolerance, and case size. The difference is the termination finish: 'RNJ' is RoHS-compliant/lead-free; 'ANJ' is the standard tin/lead termination. If your BOM requires lead-free assembly, the RNJ variant is the direct replacement. Confirm the soldering profile matches the lead-free reflow temperature.