Is there a pin-compatible replacement for TAJB226M020RNJ?

TPSB226K020R0400 appears to be pin-compatible, sharing the 1210 package, but requires datasheet verification. TAJB226M016RNJ is also pin-compatible but is a high-risk downgrade due to its lower 16V rating.

What risks should I check before replacing TAJB226M020RNJ?

Before replacing, you must verify the package dimensions match your PCB layout. Critically, ensure the substitute's voltage rating is equal to or greater than the original's 20V. Also check if changes in ESR and tolerance are acceptable for your application.

TAJB226M020RNJ Alternatives, Datasheet & Cross Reference | AVX

TAJB226M020RNJ is a standard 22µF 20V tantalum capacitor in a 1210 package. Several alternatives exist, including potential upgrades and functional alternatives with different footprints.

AI replacement insight

Package riskhigh

Several candidates have different packages (e.g., 2917 vs 1210), making them not drop-in compatible.

Electrical riskhigh

One candidate has a lower voltage rating (16V vs 20V), which is a critical failure point if not managed.

Can it be replaced directly?

Yes, TPSB226K020R0400 is a potential direct replacement with improved performance. However, its pin count data is missing and must be verified before use. TAJB226M016RNJ is pin-compatible but has a lower voltage rating and is considered a high-risk downgrade.

Best replacement path

TPSB226K020R0400 is the best path, offering an upgrade in tolerance and ESR in the same package, pending pinout verification. For applications that can accommodate a larger footprint, TAJD226K025RNJ is a robust functional alternative.

Main risk

The main risks are package mismatch, which requires a PCB redesign, and using a part with a lower voltage rating, which can lead to component failure.

Recommended alternatives

Potential upgrade with identical package and primary ratings, but improved tolerance and ESR.

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Alternative comparison matrix

Feature / factor	TAJB226M020RNJ	TPSB226K020R0400	TAJB226M016RNJ	Compatibility / risk
Package	3528 (1210)	1210 (3528 Metric)	3528 (1210)	1210 (3528 Metric) / 3528 (1210) — Package codes match.; TAJB226M016RNJ: Package codes match.
Voltage	20.0V	20.0V	16.0V	20.0V / 16.0V — Voltage ratings are identical.; TAJB226M016RNJ: Lower voltage rating is a critical risk.
Capacitance	22.0µF	22.0µF	22.0µF	22.0µF — Capacitance values are identical.; TAJB226M016RNJ: Capacitance values are identical.
Tolerance	20.0%	10.0%	-	10.0% — Candidate has tighter tolerance.
Esr	1.8Ω	400mΩ	2.3Ω	400mΩ / 2.3Ω — Candidate has significantly lower ESR.; TAJB226M016RNJ: Candidate has higher ESR.

Application & sourcing insights

Questions & answers

The best alternative is likely TPSB226K020R0400, which offers matching primary specs and a better tolerance and ESR in the same 1210 package. However, its datasheet should be checked to confirm pinout. If a larger footprint is acceptable, TAJD226K025RNJ is a good electrical upgrade.