Is there a pin-compatible replacement for CA45-B-10V-100uF-M?

CA45A-B-10V-100UF-K is likely pin-compatible as it shares the 'B' case code, but physical dimensions should be confirmed from the datasheet before ordering. Other functional alternatives require a different PCB footprint.

What risks should I check before replacing CA45-B-10V-100uF-M?

Key risks include package mismatch requiring PCB redesign, and technology differences (e.g., Tantalum vs. Polymer) which affect ESR, leakage current, and temperature characteristics. Always verify the candidate's datasheet.

CA45-B-10V-100uF-M Alternatives, Datasheet & Cross Reference | NH

Find suitable replacements for the CA45-B-10V-100uF-M, a 100µF 10V tantalum capacitor in a B-case package. This guide reviews alternatives, highlighting key differences in package, tolerance, and technology.

AI replacement insight

Package riskhigh

Many alternatives have different footprints requiring PCB redesign.

Electrical riskmedium

Alternatives may have different dielectrics (e.g., Polymer) affecting ESR and leakage.

Can it be replaced directly?

No verified direct drop-in replacement has been identified. CA45A-B-10V-100UF-K is the closest candidate but requires datasheet verification for package fit and electrical characteristics of its polymer dielectric.

Best replacement path

The most promising path is CA45A-B-10V-100UF-K, which offers better tolerance. Verify its polymer dielectric characteristics and package dimensions.

Main risk

The primary risk is physical incompatibility, as many functional alternatives come in different package sizes (C-case, D-case) that will not fit the original B-case footprint.

Recommended alternatives

A potential upgrade with tighter tolerance (±10%) and lower ESR polymer dielectric in a likely matching 'B' case package.

View details

Alternative comparison matrix

Feature / factor	CA45-B-10V-100uF-M	CA45A-B-10V-100UF-K	CA45-C-10V-100uF-K	CA45-D-16V-100uF-K	Compatibility / risk
Package	3528-21 (B)	B	C-Case (6032)	D (7343)	B / C-Case (6032) / D (7343) — Package code 'B' likely matches EIA 3528, but requires verification.; CA45-C-10V-100uF-K: Larger package requires PCB redesign.; CA45-D-16V-100uF-K: Larger package requires PCB redesign.
Voltage	10V	10V	10V	16V	10V / 16V — Voltage rating matches the target.; CA45-C-10V-100uF-K: Voltage rating matches the target.; CA45-D-16V-100uF-K: Higher voltage rating provides more margin.
Tolerance	±20%	±10%	±10%	±10%	±10% — Tighter tolerance is an upgrade.; CA45-C-10V-100uF-K: Tighter tolerance is an upgrade.; CA45-D-16V-100uF-K: Tighter tolerance is an upgrade.
Technology	Tantalum	Tantalum Polymer	-	-	Tantalum Polymer — Polymer offers lower ESR but may have different leakage characteristics.
Capacitance	100µF	-	-	100µF	100µF — Capacitance matches the target.

Application & sourcing insights

Questions & answers

CA45A-B-10V-100UF-K is a strong candidate, offering tighter tolerance in a likely identical package. However, it uses a polymer dielectric, so ESR and leakage current should be verified for your application.