What risks should I check before replacing CA45A-B-25V-10uF-K?

Key risks include using a part with a lower voltage rating, wider tolerance (e.g., ±20%), higher ESR, or a different package size. Switching technology to a ceramic capacitor also introduces risk from DC bias capacitance loss.

CA45A-B-25V-10uF-K Alternatives, Datasheet & Cross Reference | NH

Finding a substitute for the XY CA45A-B-25V-10uF-K tantalum capacitor requires checking voltage, capacitance, tolerance, ESR, and the B-case package. Several alternatives exist with varying parameters.

AI replacement insight

Electrical riskmedium

Candidates may have higher ESR or wider tolerance.

Package riskhigh

Many functional alternatives are in different, larger packages.

Can it be replaced directly?

Direct replacement for CA45A-B-25V-10uF-K should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most promising substitute is CA45B-B-25V-10UF-K, which offers an ESR upgrade in what is likely the same package.

Main risk

The main risks are package incompatibility and selecting a part with weaker electricals like higher ESR or wider tolerance.

Recommended alternatives

Excellent match with identical ratings and improved (lower) ESR. Package name requires verification.

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Alternative comparison matrix

Feature / factor	CA45A-B-25V-10uF-K	CA45B-B-25V-10UF-K	CA45-B-25V-10uF-M	Compatibility / risk
Package	B	3528-19	B	3528-19 / B — Likely same as B-case (3528), but name requires verification.; CA45-B-25V-10uF-M: Package matches target.
Voltage	25V	25V	25V	25V — Voltage rating matches.; CA45-B-25V-10uF-M: Voltage rating matches.
Tolerance	±10%	±10%	±20%	±10% / ±20% — Tolerance matches.; CA45-B-25V-10uF-M: Wider tolerance may affect circuit precision.
Esr	3.0Ω max	1.4Ω	6.0Ω	1.4Ω / 6.0Ω — Lower ESR is a performance upgrade.; CA45-B-25V-10uF-M: Higher ESR can impact performance in filtering applications.

Application & sourcing insights

Questions & answers

Verified drop-in options for CA45A-B-25V-10uF-K 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.