Is there a pin-compatible replacement for CA45-A-16V-4.7uF-K?

Yes, CA45-A-25V-4.7uF-K is a pin-compatible upgrade. CA45-A-16V-4.7uF-M is also pin-compatible, but it has a wider tolerance (±20%) that requires application review.

What risks should I check before replacing CA45-A-16V-4.7uF-K?

Check for three main risks: 1) Package incompatibility (e.g., Case B vs Case A). 2) Parametric changes like wider tolerance. 3) Technology differences (Tantalum vs. Polymer/MLCC), which affect ESR, DC bias, and reliability.

CA45-A-16V-4.7uF-K Alternatives, Datasheet & Cross Reference | NH

Find and compare alternatives for the XY CA45-A-16V-4.7uF-K, a 4.7µF 16V tantalum capacitor. This guide reviews upgrade paths, parametric alternatives, and functional substitutes like polymer or ceramic capacitors.

AI replacement insight

Electrical risklow

Low for same-series upgrades; high for technology changes (e.g., to MLCC).

Package risklow

Low for parts with matching 'A' or '1206' case codes.

Sourcing risklow

Multiple alternatives with similar specs are available.

Can it be replaced directly?

Yes, CA45-A-25V-4.7uF-K is a direct upgrade replacement. For a cost-sensitive option, CA45-A-16V-4.7uF-M is a possibility if wider tolerance is acceptable.

Best replacement path

The safest replacement is CA45-A-25V-4.7uF-K, an upgrade with higher voltage in the same package from the same manufacturer.

Main risk

The main risk is substituting with a different technology like MLCC or Polymer without verifying circuit stability, as ESR and DC bias characteristics differ significantly.

Recommended alternatives

A pin-compatible upgrade with a higher 25V rating and lower ESR in the same 'A' package.

View details

Alternative comparison matrix

Feature / factor	CA45-A-16V-4.7uF-K	CA45-A-25V-4.7uF-K	CA45-A-16V-4.7uF-M	Compatibility / risk
Voltage	16V	25V	16V	25V / 16V — Higher voltage is a safe upgrade.; CA45-A-16V-4.7uF-M: Identical voltage rating.
Package	A	A	A	A — Same standard package code.; CA45-A-16V-4.7uF-M: Same standard package code.
Esr	8.0 Ω	6.0 Ω	8.0 Ω	6.0 Ω / 8.0 Ω — Lower ESR is generally an improvement.; CA45-A-16V-4.7uF-M: Identical ESR.
Tolerance	±10%	±10%	±20%	±10% / ±20% — Identical tolerance.; CA45-A-16V-4.7uF-M: Wider tolerance may not be acceptable.

Application & sourcing insights

Questions & answers

The best alternative is CA45-A-25V-4.7uF-K. It is from the same manufacturer and offers a higher voltage rating (25V vs 16V) and lower ESR in the same package, making it a robust upgrade.