Is there a pin-compatible replacement for TAJD477M006RNJ?

Yes, parts in the same 7343 D-Case package like TAJD337K006RNJ are pin-compatible. However, their electrical parameters like capacitance (330µF vs 470µF) and ESR (900mΩ vs 400mΩ) differ, requiring engineering review.

What risks should I check before replacing TAJD477M006RNJ?

Key risks include using a part with lower capacitance, which can affect circuit stability, or higher ESR, which can increase ripple and heat. Also, ensure the replacement has the same 'D-Case' height (2.8mm), as other 7343 packages like 'E-Case' are taller (4.3mm).

TAJD477M006RNJ Alternatives, Datasheet & Cross Reference | AVX

TAJD477M006RNJ is a 470µF 6.3V general-purpose tantalum capacitor in a 7343 D-Case package. Finding a direct drop-in replacement requires careful matching of capacitance, ESR, and package dimensions.

AI replacement insight

Electrical riskhigh

Candidates have significantly different capacitance or ESR.

Package riskmedium

Some candidates have the same footprint but are taller (E-Case vs D-Case).

Can it be replaced directly?

No direct 1-for-1 replacement was found. All candidates have significant parametric differences in capacitance or ESR, or have package height mismatches, requiring engineering validation.

Best replacement path

Prioritize D-Case parts. If lower capacitance is tolerable, TAJD337... parts are options but check the higher ESR. If low ESR is key, consider TPSD227... if the capacitance drop is acceptable.

Main risk

The main risks are functional changes due to lower capacitance or higher ESR, and mechanical interference from substitutes with a different package height.

Recommended alternatives

Pin-compatible with matching voltage, but has lower capacitance and significantly higher ESR.

View details

Alternative comparison matrix

Feature / factor	TAJD477M006RNJ	TAJD337K006RNJ	TAJD337M010RNJ	TPSD227M010R0100	Compatibility / risk
Package	7343 (D Case)	7343 (D Case)	7343 (D Case)	7343 (D case)	7343 (D Case) / 7343 (D case) — Package footprint matches target.; TAJD337M010RNJ: Package footprint matches target.; TPSD227M010R0100: Package footprint matches target.
Voltage	6.3 V	6.3 V	10 V	10 V	6.3 V / 10 V — Voltage rating matches.; TAJD337M010RNJ: Higher voltage rating provides more margin.; TPSD227M010R0100: Higher voltage rating provides more margin.
Capacitance	470 µF	330 µF	330 µF	220 µF	330 µF / 220 µF — Lower capacitance may affect circuit stability.; TAJD337M010RNJ: Lower capacitance may affect circuit stability.; TPSD227M010R0100: Capacitance is less than half of target.
Esr	400 mΩ	900 mΩ	900 mΩ	100 mΩ	900 mΩ / 100 mΩ — Significantly higher ESR increases ripple/loss.; TAJD337M010RNJ: Significantly higher ESR increases ripple/loss.; TPSD227M010R0100: Much lower ESR is a significant improvement.
Tolerance	20 %	10 %	-	-	10 % — Tighter tolerance is an improvement.

Application & sourcing insights

Questions & answers

There is no single best alternative. Candidates like TAJD337M010RNJ match the package but have lower capacitance and higher ESR. The best choice depends on specific circuit requirements for capacitance and ripple.