Is there a pin-compatible replacement for T491D227K010AT?

No direct pin-to-pin replacement has been identified. While T491D337K010AT shares the same package, its higher capacitance requires circuit validation before use.

What risks should I check before replacing T491D227K010AT?

Key risks are electrical and mechanical. Check if your circuit can tolerate a different capacitance value (e.g., 330µF vs 220µF). Also, verify the maximum component height allowed on your board.

T491D227K010AT Alternatives, Datasheet & Cross Reference | KEMET

Find and evaluate replacements for the KEMET T491D227K010AT, a 220µF 10V D-case tantalum capacitor. Key checks for substitutes include capacitance value and physical package height.

AI replacement insight

Electrical riskmedium

Capacitance mismatch can alter circuit behavior.

Package riskmedium

A taller component may not fit on the PCB.

Sourcing risklow

Target and candidates are listed as active.

Can it be replaced directly?

No direct drop-in replacement was found. All viable alternatives require engineering review due to differences in capacitance or package size.

Best replacement path

Evaluate T491X227K016AT for its superior voltage if mechanical height allows, or T491D337K010AT if the circuit tolerates higher capacitance.

Main risk

The primary risks are circuit malfunction from incorrect capacitance and assembly failure from a physically taller package.

Recommended alternatives

Matches capacitance with a higher voltage rating, but comes in a taller package that requires mechanical fit check.

View details

Alternative comparison matrix

Feature / factor	T491D227K010AT	T491X227K016AT	T491D337K010AT	Compatibility / risk
Package	7343-31	7343-43	7343-31	7343-43 / 7343-31 — Taller package (4.3mm vs 2.8mm).; T491D337K010AT: Package case code matches.
Voltage	10 V	16 V	10 V	16 V / 10 V — Higher voltage rating provides more margin.; T491D337K010AT: Voltage rating matches.
Capacitance	220 µF	220 µF	330 µF	220 µF / 330 µF — Capacitance matches.; T491D337K010AT: Candidate capacitance is ~50% higher.
Tolerance	±10%	±10%	±10%	±10% — Tolerance matches.; T491D337K010AT: Tolerance matches.

Application & sourcing insights

Questions & answers

The best alternative depends on your design constraints. T491X227K016AT has matching capacitance and higher voltage but is taller. T491D337K010AT has the same package but higher capacitance. Both require review.