
High-performance upgrade from the TPS series with better voltage, tolerance, and ESR in the same package.
TAJB226M016RNJ is a standard 22µF 16V 1210 tantalum capacitor from AVX. Several alternatives exist, including direct upgrades with higher voltage ratings and lower ESR in the same package, as well as functional alternatives in different packages.
Several alternatives exist in different packages (D-Case, E-Case) which require a board redesign.
Ensure changes in ESR or capacitance are acceptable for circuit stability and performance.
Multiple compatible options are available from the same manufacturer (AVX).
Yes, direct replacements for TAJB226M016RNJ are available. TAJB226M020RNJ is a strong candidate with a higher voltage rating.
Upgrade to a part in the same package with higher voltage and lower ESR, such as TAJB226M020RNJ or the higher-performance TPSB226K020R0400.
The main risk is selecting a part with a different package size or a capacitance value that is not suitable for the specific application.

High-performance upgrade from the TPS series with better voltage, tolerance, and ESR in the same package.
| Feature / factor | TAJB226M016RNJ | TPSB226K020R0400 | TAJB226M020RNJ | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3528 (1210) | 1210 (3528 Metric) | 3528 (1210) | 1210 (3528 Metric) / 3528 (1210) — Package matches target.; TAJB226M020RNJ: Package matches target. | |
| Voltage | 16V | 20V | 20V | 20V — Higher voltage rating.; TAJB226M020RNJ: Higher voltage rating provides more design margin. | |
| Tolerance | 20% | 10% | 20% | 10% / 20% — Tighter tolerance is an improvement.; TAJB226M020RNJ: Tolerance matches target. | |
| Esr | 2.3Ω | 400mΩ | 1.8Ω | 400mΩ / 1.8Ω — Significantly lower ESR improves performance.; TAJB226M020RNJ: Lower ESR is generally beneficial. | |
| Capacitance | 22µF | - | 22µF | 22µF — Capacitance matches target. |
The best alternative is likely TPSB226K020R0400, which offers a higher voltage rating (20V), tighter tolerance (10%), and significantly lower ESR (0.4Ω) in the same 1210 package, making it a superior performance upgrade.