
A pin-compatible alternative in the same package, but with significantly higher capacitance (22µF).
The TAJD106K025RNJ is a popular 10µF 25V tantalum capacitor in a 2917 'D' case package. Finding a direct replacement requires matching capacitance, voltage, and package size, while alternatives may offer different performance or require design changes.
Most alternatives have different packages, requiring a board redesign.
Candidates have different capacitance, tolerance, ESR, or technology.
Multiple functional alternatives from the same manufacturer are available.
No direct pin-for-pin, parameter-matched replacement was found. The closest options have different packages or significantly different capacitance values, requiring engineering review.
For applications tolerant of higher capacitance, TAJD226K025RNJ offers a pin-compatible footprint with 22µF. Otherwise, TAJB106M025RNJ is functionally similar but requires a new PCB layout.
The main risks are package mismatch, which requires a PCB redesign, and significant changes in capacitance or technology (Tantalum vs. MLCC), which affect circuit performance.

A pin-compatible alternative in the same package, but with significantly higher capacitance (22µF).
| Feature / factor | TAJD106K025RNJ | TAJD226K025RNJ | TAJB106M025RNJ | 22201C106MAT2A | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2917 (7343 Metric) | 2917 (7343 Metric) | 3528 (1210 Metric) | 2220 (5750 metric) | 2917 (7343 Metric) / 3528 (1210 Metric) / 2220 (5750 metric) — Package is a direct match.; TAJB106M025RNJ: Smaller package, not a direct fit.; 22201C106MAT2A: Smaller package, not a direct fit. |
| Capacitance | 10 µF | 22 µF | 10 µF | 10 µF | 22 µF / 10 µF — Capacitance is over 2x higher, requires circuit validation.; TAJB106M025RNJ: Capacitance matches.; 22201C106MAT2A: Nominal capacitance matches, but check DC bias derating. |
| Voltage | 25 V | 25 V | 25 V | 100 V | 25 V / 100 V — Voltage rating matches.; TAJB106M025RNJ: Voltage rating matches.; 22201C106MAT2A: Higher voltage rating provides more margin. |
| Tolerance | 10% | 10% | 20% | 20% | 10% / 20% — Tolerance matches.; TAJB106M025RNJ: Wider tolerance may affect circuit precision.; 22201C106MAT2A: Wider tolerance may affect circuit precision. |
| Esr | 1.2 Ohm | 0.9 Ohm | 2.5 Ohm | - | 0.9 Ohm / 2.5 Ohm — Lower ESR is generally beneficial.; TAJB106M025RNJ: Higher ESR may affect filtering performance. |
| Technology | Tantalum | - | - | MLCC (X7R) | MLCC (X7R) — Different capacitor technology (Ceramic vs Tantalum) with different electrical behavior. |
The best alternative depends on your design constraints. TAJD226K025RNJ is pin-compatible but has higher capacitance (22µF). TAJB106M025RNJ has matching capacitance but a smaller package requiring a new layout.