What risks should I check before replacing T491B107K006AT?

Key risks include package mismatch, which requires board layout changes, and parametric differences like wider tolerance (e.g., 20% vs 10%) or different ESR, which can affect circuit performance.

T491B107K006AT Alternatives, Datasheet & Cross Reference | KEMET

Reviewing substitutes for KEMET's T491B107K006AT, a 100µF 6.3V 10% tantalum capacitor in a 3528 B-case. Key considerations are matching capacitance, voltage, tolerance, and physical package size.

AI replacement insight

Package riskhigh

Several candidates are in a larger D-case, which is not a drop-in fit.

Electrical riskmedium

One candidate has a wider tolerance (±20%) which may be unsuitable for some applications.

Can it be replaced directly?

Direct replacement for T491B107K006AT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is Vishay's 293D107X96R3B2TE3, which matches all critical parameters and package size.

Main risk

The main risks with other candidates are package mismatches requiring a PCB redesign or relaxed tolerance impacting circuit precision.

Recommended alternatives

Strong alternative from Vishay with matching package, voltage, capacitance, and tolerance.

View details

Alternative comparison matrix

Feature / factor	T491B107K006AT	293D107X96R3B2TE3	T491B107M010AT	Compatibility / risk
Package	3528-21 (B)	3528-21 (B Case)	3528-21 (B)	3528-21 (B Case) / 3528-21 (B) — Package size and land pattern appear identical.; T491B107M010AT: Package size and land pattern are identical.
Voltage	6.3V	6.3V	10V	6.3V / 10V — Voltage rating is identical.; T491B107M010AT: Higher voltage rating provides more margin.
Capacitance	100µF	100µF	-	100µF — Capacitance is identical.
Tolerance	±10%	±10%	±20%	±10% / ±20% — Tolerance is identical.; T491B107M010AT: Wider tolerance may impact circuit precision.
Esr	2.0Ω	1.7Ω	1.2Ω	1.7Ω / 1.2Ω — Lower ESR is generally favorable.; T491B107M010AT: Lower ESR is generally favorable.

Application & sourcing insights

Questions & answers

Verified drop-in options for T491B107K006AT are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.