Is there a pin-compatible replacement for CA45A-A-10V-22uF-K?

Yes, other solid tantalum capacitors in an EIA 'A' case (3216 metric) package are generally pin-compatible. However, you must always verify electrical parameters like voltage, tolerance, and ESR before substitution.

What risks should I check before replacing CA45A-A-10V-22uF-K?

Before replacing, check three main risks: 1) Package mismatch if not an 'A' case. 2) Electrical tolerance, as many alternatives have a wider ±20% range. 3) ESR differences, which can affect power supply stability.

CA45A-A-10V-22uF-K Alternatives, Datasheet & Cross Reference | NH

CA45A-A-10V-22uF-K is a 22µF, 10V solid tantalum capacitor in a compact A-case. While direct replacements are scarce, several functional alternatives with matching packages are available from major manufacturers, requiring review of electrical parameters.

AI replacement insight

Package risklow

Alternatives in the standard A-case (3216) package are available and should fit the same PCB footprint.

Electrical riskmedium

Wider tolerance (±20% vs ±10%) and different ESR values require engineering review to ensure circuit stability and performance.

Can it be replaced directly?

No guaranteed drop-in replacement has been identified. However, several functional alternatives exist that match the package and capacitance but differ in voltage and tolerance.

Best replacement path

Look for 22µF solid tantalum capacitors in an A-case (3216) package with a voltage rating of 10V or higher. Be prepared to accept a wider tolerance of ±20%.

Main risk

The primary risk is the wider capacitance tolerance (±20%) of available alternatives, which may impact the performance of precision analog or timing circuits.

Recommended alternatives

Alternative from Kyocera AVX with higher voltage (16V) and lower ESR, but wider capacitance tolerance (±20%).

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Alternative comparison matrix

Feature / factor	CA45A-A-10V-22uF-K	TAJA226M016RNJ	TMCMA1C226MTRF	Compatibility / risk
Package	A	3216-18 (Case A)	3216-18 (A Case)	3216-18 (Case A) / 3216-18 (A Case) — Candidate is standard A-case, matching target's form factor.; TMCMA1C226MTRF: Candidate is standard A-case, matching target's form factor.
Voltage	10V	16V	16V	16V — Higher voltage rating provides more design margin.; TMCMA1C226MTRF: Higher voltage rating provides more design margin.
Tolerance	±10%	±20%	±20%	±20% — Wider tolerance may affect circuit performance.; TMCMA1C226MTRF: Wider tolerance may affect circuit performance.
Esr	6.0 Ω	3 Ohm	2.9 Ω	3 Ohm / 2.9 Ω — Lower ESR is generally beneficial but should be checked in sensitive circuits.; TMCMA1C226MTRF: Lower ESR is generally beneficial but should be checked in sensitive circuits.

Application & sourcing insights

Questions & answers

The best alternatives are parts like Vishay's TMCMA1C226MTRF or Kyocera AVX's TAJA226M016RNJ. They offer a higher voltage rating but have a wider tolerance (±20%) that must be verified for your application.