KYOCERA AVX TAJ series, Molded, 1 µF, 20 V, ±10%, 0805 (2012 Metric), 20 Ohm ESR, -55°C to 125°C
| Parameter | Value |
|---|---|
| Type | Molded |
| Series | TAJ |
| Mounting | Surface Mount |
| ESR | 20Ohm |
| Voltage - rated | 20 V |
| Operating temperature | -55°C~125°C |
| Size (Dimension) | 0.081\" L x 0.051\" W (2.05mm x 1.30mm) |
| Height - seated | 0.047\" (1.20mm) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Features | General Purpose |
| Tolerance | ±10% |
| Capacitance | 1 µF |
| Case | 0805 (2012 Metric) |
| Manufacturer size code | R |
The TAJR105K020RNJ: 20 V rated voltage on a 1 µF capacitance in an 0805 case gives a 67% derating margin on a 12 V rail — standard tantalum reliability practice recommends staying below 80% of rated voltage, and this part clears that threshold comfortably.
Within the same TAJ series, other 1 µF, 20 V, 0805 parts with different tolerance codes (e.g., ±20% vs ±10%) or ESR grades are direct form-fit-function alternatives. No pin-compatible issue — the 0805 footprint is standard. Confirm the tolerance and ESR requirement before substituting.