Is there a pin-compatible replacement for TAJE687K006RNJ?

Yes, several candidates like TPSE477K010R0100 share the same 7343 E-case package and pinout. However, their electrical parameters differ, so they are not drop-in replacements and require engineering review.

What risks should I check before replacing TAJE687K006RNJ?

Key risks include changes in capacitance, which can affect circuit stability and timing, and tolerance, which impacts precision. Also verify ESR and case height, as these can affect performance and board assembly.

TAJE687K006RNJ Alternatives, Datasheet & Cross Reference | AVX

Finding a substitute for the AVX TAJE687K006RNJ 680µF 6.3V tantalum capacitor requires careful matching of capacitance, tolerance, and ESR in the 7343 E-case package. Several alternatives exist with varying parameters.

AI replacement insight

Electrical riskmedium

Capacitance and tolerance variations require analysis.

Package riskmedium

Some candidates have a different case height, which is a fitment risk.

Can it be replaced directly?

No direct drop-in replacement has been identified. All candidates have parametric differences, primarily in capacitance, that require engineering validation for your specific application.

Best replacement path

TPSE477K010R0100 is a strong candidate if lower capacitance is acceptable, due to its superior voltage/ESR. For applications needing higher capacitance, TAJE108M006RNJ is an option, but its looser tolerance is a risk.

Main risk

The primary risk is capacitance mismatch. Both higher and lower values can negatively impact circuit performance, such as filter characteristics or power supply stability.

Recommended alternatives

Offers better voltage and ESR in the same package, but has lower capacitance which requires review.

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Alternative comparison matrix

Feature / factor	TAJE687K006RNJ	TPSE477K010R0100	TAJE108M006RNJ	Compatibility / risk
Package	E Case (7343)	E Case (7343)	7343 (2917 Metric)	E Case (7343) / 7343 (2917 Metric) — Package and case code match.; TAJE108M006RNJ: Package footprint matches.
Voltage	6.3V	10V	6.3V	10V / 6.3V — Higher voltage rating is an upgrade.; TAJE108M006RNJ: Voltage rating matches.
Capacitance	680uF	470uF	1000uF	470uF / 1000uF — Lower capacitance is a risk.; TAJE108M006RNJ: Significantly higher capacitance.
Tolerance	10%	10%	20%	10% / 20% — Tolerance matches.; TAJE108M006RNJ: Looser tolerance.
Esr	500mOhm	100mOhm	200mOhm	100mOhm / 200mOhm — Much lower ESR is a significant upgrade.; TAJE108M006RNJ: Lower ESR is an improvement.

Application & sourcing insights

Questions & answers

There is no single 'best' alternative. TPSE477K010R0100 offers better voltage and ESR but lower capacitance. TAJE108M006RNJ has higher capacitance. The best choice depends on your circuit's tolerance for these variations.