Is there a pin-compatible replacement for TAJC686K016RNJ?

No direct pin-compatible replacement with identical key parameters has been identified. Candidates in the same package have significantly different capacitance and tolerance, requiring circuit validation.

What risks should I check before replacing TAJC686K016RNJ?

Key risks include package mismatch requiring PCB redesign, and changes in capacitance, tolerance, or ESR which can affect circuit stability, timing, and filtering performance. Always verify datasheet parameters.

TAJC686K016RNJ Alternatives, Datasheet & Cross Reference | AVX

Finding a substitute for the AVX TAJC686K016RNJ 68µF 16V tantalum capacitor requires careful review of package size and electrical parameters. While functional alternatives exist, no direct drop-in replacements have been identified.

AI replacement insight

Package riskhigh

Most alternatives are in different case sizes, requiring PCB redesign.

Electrical riskmedium

Some candidates have different capacitance or tolerance, affecting circuit performance.

Can it be replaced directly?

No direct, drop-in replacements for TAJC686K016RNJ have been identified. All candidates have significant differences in package or electrical parameters.

Best replacement path

Use TAJD686K016RNJ if the larger D-case footprint is acceptable. Otherwise, a circuit review for a different C-case capacitor is needed.

Main risk

The primary risk is physical incompatibility due to different package sizes. The secondary risk is functional mismatch from different capacitance values.

Recommended alternatives

Electrically identical alternative with better ESR, but requires a larger PCB footprint (D-case).

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Alternative comparison matrix

Feature / factor	TAJC686K016RNJ	TAJD686K016RNJ	TAJE107K025RNJ	TAJC476M016RNJ	Compatibility / risk
Package	6032 (C Case)	7343 (D Case)	7343 (E Case)	6032 (2312)	7343 (D Case) / 7343 (E Case) / 6032 (2312) — Larger package requires PCB change.; TAJE107K025RNJ: Larger package requires PCB change.; TAJC476M016RNJ: Package size matches target.
Capacitance	68 µF	68 µF	100 µF	47 µF	68 µF / 100 µF / 47 µF — Capacitance matches target.; TAJE107K025RNJ: Higher capacitance may affect circuit.; TAJC476M016RNJ: Significantly lower capacitance.
Voltage	16 V	16 V	25 V	16 V	16 V / 25 V — Voltage rating matches.; TAJE107K025RNJ: Higher voltage rating is an upgrade.; TAJC476M016RNJ: Voltage rating matches.
Tolerance	10 %	10 %	10 %	20 %	10 % / 20 % — Tolerance matches target.; TAJE107K025RNJ: Tolerance matches target.; TAJC476M016RNJ: Wider tolerance is a downgrade.
Esr	1.3 Ω	900 mΩ	-	500 mΩ	900 mΩ / 500 mΩ — Lower ESR is an improvement.; TAJC476M016RNJ: Lower ESR is an improvement.

Application & sourcing insights

Questions & answers

TAJD686K016RNJ is a strong functional alternative with identical electrical specs but requires a larger D-case package. For applications sensitive to board space, other options must be carefully evaluated for parametric differences.