Is there a pin-compatible replacement for TAJA105K016RNJ?

No pin-for-pin identical replacement has been verified. Candidates like TAJA225K016RNJ share the same 1206 package and pinout but differ in capacitance, which requires circuit-level review before substitution.

What risks should I check before replacing TAJA105K016RNJ?

First, verify the package size; a 1210 package will not fit a 1206 footprint. Second, check if your circuit can tolerate a different capacitance value. Finally, compare the ESR (Equivalent Series Resistance) of the original and the replacement.

TAJA105K016RNJ Alternatives, Datasheet & Cross Reference | AVX

TAJA105K016RNJ is a 1uF 16V tantalum capacitor in a 1206 package. While no direct drop-in replacements are confirmed, several functional alternatives exist with variations in package or capacitance that may be suitable after engineering review.

AI replacement insight

Package riskhigh

One candidate is in a larger 1210 package and will not fit the PCB footprint.

Electrical riskmedium

Several candidates have significantly different capacitance values, which requires circuit analysis.

Can it be replaced directly?

No direct, pin-for-pin replacement has been verified. All candidates require review due to differences in package size or key electrical parameters like capacitance.

Best replacement path

Search for a 1uF, 16V (or higher), 10% tantalum capacitor in a 1206 package. Pay close attention to ESR.

Main risk

The primary risks are physical incompatibility due to different package sizes or circuit malfunction from mismatched capacitance.

Recommended alternatives

Form-fit alternate in the same 1206 package with matched voltage, but higher capacitance (2.2uF).

View details

Alternative comparison matrix

Feature / factor	TAJA105K016RNJ	TAJA225K016RNJ	TAJA475K025RNJ	TAJB105K035RNJ	Compatibility / risk
Package	1206 (3216 Metric)	1206 (3216 Metric)	1206 (3216 Metric)	3528 (1210)	1206 (3216 Metric) / 3528 (1210) — Package size matches the target.; TAJA475K025RNJ: Package size matches the target.; TAJB105K035RNJ: Candidate is physically larger and will not fit on the same PCB footprint.
Capacitance	1.0e-06F	2.2e-06F	4.7e-06F	1.0e-06F	2.2e-06F / 4.7e-06F / 1.0e-06F — Capacitance is more than double the target's value.; TAJA475K025RNJ: Capacitance is significantly higher than the target's value.; TAJB105K035RNJ: Capacitance value matches the target.
Voltage	16.0V	16.0V	25.0V	35.0V	16.0V / 25.0V / 35.0V — Voltage rating matches the target.; TAJA475K025RNJ: Higher voltage rating provides more design margin.; TAJB105K035RNJ: Higher voltage rating provides more design margin.
Tolerance	10.0%	10.0%	-	10.0%	10.0% — Tolerance matches the target.; TAJB105K035RNJ: Tolerance matches the target.

Application & sourcing insights

Questions & answers

No single 'best' alternative is confirmed. For applications tolerant of higher capacitance, TAJA225K016RNJ (2.2uF) is in the same package. If a larger footprint is possible, TAJB105K035RNJ offers the same capacitance with a higher voltage rating. All require engineering validation.