Is there a pin-compatible replacement for TAJC105K050RNJ?

No, a direct pin-compatible replacement for TAJC105K050RNJ has not been found. All evaluated functional alternatives are in different physical packages (e.g., 3528, 1206, 0805) and require a PCB layout modification.

What risks should I check before replacing TAJC105K050RNJ?

Before replacing, you must verify the physical package and PCB land pattern. Also check for any impact from changes in ESR, tolerance, or capacitor technology (Tantalum vs. Ceramic MLCC), which can affect circuit stability and performance.

TAJC105K050RNJ Alternatives, Datasheet & Cross Reference | AVX

TAJC105K050RNJ is a 1uF 50V tantalum capacitor in a 6032 C-Case. While no direct pin-compatible replacements are available, several functional alternatives exist in smaller packages that require PCB layout changes and engineering review.

AI replacement insight

Package riskhigh

All candidates have different physical footprints, requiring a PCB layout change.

Electrical riskmedium

Some candidates have weaker ESR or tolerance. Switching to MLCC technology introduces significant performance differences.

Sourcing risklow

The identified alternatives are from the same manufacturer and are generally common parts.

Can it be replaced directly?

No direct, pin-compatible replacement has been identified for TAJC105K050RNJ. All suitable alternatives require a PCB layout change due to different package sizes.

Best replacement path

Redesign the PCB layout to accommodate a more widely available package, such as the B-Case (TAJB105K050RNJ) or an MLCC in an 0805/1210 package.

Main risk

The primary risk is the package mismatch. No candidates share the target's 6032 C-Case package, making a board redesign necessary for any substitution.

Recommended alternatives

Functionally similar with same capacitance and voltage, but in a smaller package with higher ESR.

View details

Alternative comparison matrix

Feature / factor	TAJC105K050RNJ	TAJB105K050RNJ	08055C105KAT2A	TAJA105M050RNJ	Compatibility / risk
Package	6032 (2312) / C-Case	3528 (1210) / B-Case	0805 (2012 metric)	1206 (3216) / A-Case	3528 (1210) / B-Case / 0805 (2012 metric) / 1206 (3216) / A-Case — Not a drop-in replacement, requires PCB layout change.; 08055C105KAT2A: Not a drop-in replacement, requires PCB layout change.; TAJA105M050RNJ: Not a drop-in replacement, requires PCB layout change.
Esr	5.5 Ohms	7 Ohms	-	6.6 Ohms	7 Ohms / 6.6 Ohms — Higher ESR may affect circuit performance.; TAJA105M050RNJ: Higher ESR may affect circuit performance.
Capacitance	1 uF	1 uF	1 uF	1 uF	1 uF — matched; 08055C105KAT2A: matched; TAJA105M050RNJ: matched
Voltage	50 V	50 V	50 V	50 V	50 V — matched; 08055C105KAT2A: matched; TAJA105M050RNJ: matched
Tolerance	10 %	10 %	-	20 %	10 % / 20 % — matched; TAJA105M050RNJ: Wider tolerance may not be acceptable for the application.
Technology	Tantalum	-	Ceramic (MLCC)	-	Ceramic (MLCC) — Different technology with different performance characteristics (DC bias, polarization).

Application & sourcing insights

Questions & answers

The best alternative depends on your design flexibility. TAJB105K050RNJ is electrically closest but requires changing the PCB layout for a smaller B-Case (3528) package. All options require engineering review.