Is there a pin-compatible replacement for TAJD686K016RNJ?

No direct pin-compatible replacement with identical key parameters has been identified. Alternatives like TAJD107M016RNJ match the package but differ in capacitance and tolerance, requiring engineering review before substitution.

What risks should I check before replacing TAJD686K016RNJ?

Key risks include changes in capacitance value, which can affect circuit timing or filtering; different ESR, which can impact stability, especially in power supplies; and physical package differences requiring PCB layout changes.

TAJD686K016RNJ Alternatives, Datasheet & Cross Reference | AVX

TAJD686K016RNJ is a 68µF 16V 10% tantalum capacitor in a 7343 D-case package from AVX. Finding a direct drop-in replacement requires matching capacitance, voltage, tolerance, and the D-case footprint.

AI replacement insight

Electrical riskhigh

Significant capacitance differences in most same-package alternatives.

Package riskmedium

Some functional matches are in different packages, requiring board redesign.

Sourcing risklow

Multiple parametric alternatives from the same manufacturer family exist.

Can it be replaced directly?

No direct, drop-in replacement with identical parameters has been found. All candidates require a trade-off between physical fit and electrical characteristics.

Best replacement path

Consider TAJD107M016RNJ if your design can tolerate 100µF capacitance in the same D-case package. If electricals must be exact, TAJC686K016RNJ is a functional match but requires a PCB layout change.

Main risk

The primary risk is a mismatch in capacitance, which can alter the circuit's intended behavior. A secondary risk is a package mismatch, which prevents a simple drop-in replacement.

Recommended alternatives

Electrically identical (C, V, Tol) but in a smaller package requiring board redesign.

View details

Alternative comparison matrix

Feature / factor	TAJD686K016RNJ	TAJC686K016RNJ	TAJD107M016RNJ	TAJD476K020RNJ	Compatibility / risk
Package	7343 (D Case)	6032 (C Case)	7343 (D Case)	7343 (2917 Metric)	6032 (C Case) / 7343 (D Case) / 7343 (2917 Metric) — Smaller package requires PCB redesign.; TAJD107M016RNJ: Footprint matches target.; TAJD476K020RNJ: Matches D-case footprint.
Capacitance	68 µF	68 µF	100 µF	47 µF	68 µF / 100 µF / 47 µF — Identical capacitance.; TAJD107M016RNJ: Significantly higher capacitance.; TAJD476K020RNJ: Significantly lower capacitance.
Voltage	16.0 V	16.0 V	16.0 V	20.0 V	16.0 V / 20.0 V — Identical voltage rating.; TAJD107M016RNJ: Identical voltage rating.; TAJD476K020RNJ: Higher voltage rating provides more margin.
Tolerance	10.0 %	10.0 %	20.0 %	10.0 %	10.0 % / 20.0 % — Identical tolerance.; TAJD107M016RNJ: Wider tolerance is a downgrade.; TAJD476K020RNJ: Identical tolerance.
Esr	900 mOhms	1.3 Ohm	-	-	1.3 Ohm — Higher ESR may affect performance.

Application & sourcing insights

Questions & answers

TAJD107M016RNJ shares the same 7343 D-case package and 16V rating, but has higher capacitance (100µF) and wider tolerance (20%). For circuits that can tolerate these changes, it is a potential form-fit alternative.