What risks should I check before replacing CA45-B-16V-47uF-M?

Always verify the package/footprint (B-case, 3528), voltage rating (≥16V), and capacitance (47µF). For functional alternatives, check for changes in ESR, leakage current, and temperature range that could affect your circuit's performance.

CA45-B-16V-47uF-M Alternatives, Datasheet & Cross Reference | NH

Find and compare replacements for the CA45-B-16V-47uF-M, a 47µF 16V B-case tantalum capacitor. Analysis includes pin-compatible options and functional alternatives requiring board changes.

AI replacement insight

Package riskmedium

Many functional alternatives have a different, larger package.

Electrical risklow

For same-family replacements, electricals are often comparable or better.

Can it be replaced directly?

Yes, CA45A-B-16V-47UF-K is a potential pin-to-pin replacement with matching core specs and package. It offers tighter tolerance and lower ESR.

Best replacement path

Start with Datasheet verified or Strong match candidates for CA45-B-16V-47uF-M, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is using an alternative with a different package size, which requires a PCB redesign. Alternatives with different chemistries pose significant electrical risks.

Recommended alternatives

A potential pin-compatible Tantalum Polymer capacitor with matching voltage and capacitance, and improved tolerance and ESR.

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Alternative comparison matrix

Feature / factor	CA45-B-16V-47uF-M	CA45A-B-16V-47UF-K	CA45B-D-25V-47UF-K	CA45-D-16V-47uF-K	Compatibility / risk
Package	B	B	D (7343-28)	D	B / D (7343-28) — Package code matches target.; CA45B-D-25V-47UF-K: Larger package requires PCB redesign.; CA45-D-16V-47uF-K: Larger package requires PCB redesign.
Voltage	16V	16V	25V	16V	16V / 25V — Voltage rating matches.; CA45B-D-25V-47UF-K: Higher voltage rating is a safe upgrade.; CA45-D-16V-47uF-K: Voltage rating matches.
Capacitance	47µF	47µF	47µF	47µF	47µF — Capacitance matches.; CA45B-D-25V-47UF-K: Capacitance matches.; CA45-D-16V-47uF-K: Capacitance matches.
Tolerance	±20%	±10%	±10%	±10%	±10% — Tighter tolerance is generally an improvement.; CA45B-D-25V-47UF-K: Tighter tolerance is an improvement.; CA45-D-16V-47uF-K: Tighter tolerance is an improvement.
Esr	3 Ω (Max)	0.8 Ω	-	-	0.8 Ω — Lower ESR is an improvement.

Application & sourcing insights

Questions & answers

Verified drop-in options for CA45-B-16V-47uF-M 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.