Is there a pin-compatible replacement for CA45-P-10V-10uF-K?

No direct pin-compatible replacements have been identified in our catalog. All viable alternatives, like the KEMET T491 series or other Zhenhua Xinyun CA45 series capacitors, use different package footprints (e.g., A-Case, B-Case) and require board layout modifications.

What risks should I check before replacing CA45-P-10V-10uF-K?

Key risks include: 1) Package Mismatch: The target P-Case is smaller than most alternatives. 2) Electrical Parameters: Check for changes in ESR, leakage current, and tolerance, as these can affect circuit performance. 3) Technology: Some alternatives may use Tantalum Polymer chemistry, which has different characteristics.

CA45-P-10V-10uF-K Alternatives, Datasheet & Cross Reference | NH

CA45-P-10V-10uF-K is a 10µF, 10V tantalum capacitor in a compact P-Case (2012) package. When seeking alternatives, engineers must primarily consider package size differences, as direct drop-in replacements are uncommon.

AI replacement insight

Package riskhigh

No pin-compatible packages found; PCB redesign is required.

Electrical riskmedium

Most alternatives have higher leakage current; some have worse ESR or tolerance.

Sourcing risklow

Many functional alternatives are available from multiple manufacturers.

Can it be replaced directly?

No direct, drop-in replacement for CA45-P-10V-10uF-K is available due to its specific P-Case package. All substitutes require design review and likely a board spin.

Best replacement path

Upgrade to a higher voltage part like CA45B-A-16V-10uF-K, provided a PCB layout change for the larger A-Case package is feasible.

Main risk

The primary risk is the physical package mismatch, as no alternatives share the target's P-Case footprint, mandating a PCB redesign.

Recommended alternatives

Strong functional alternative with higher voltage and lower ESR, but in a different package.

View details

Alternative comparison matrix

Feature / factor	CA45-P-10V-10uF-K	CA45B-A-16V-10uF-K	CA45B-B-25V-10UF-K	T491A106M020AT	Compatibility / risk
Voltage	10V	16V	25V	20V	16V / 25V / 20V — Higher voltage rating provides more margin.; CA45B-B-25V-10UF-K: Higher voltage rating provides more design margin.; T491A106M020AT: Higher voltage rating provides more design margin.
Tolerance	±10%	±10%	-	±20%	±10% / ±20% — Tolerance matches target.; T491A106M020AT: Wider tolerance may affect circuit precision.
Package	P-Case (2012)	A-Case (3216)	3528-19 (B-Case)	3216-18 (A-Case)	A-Case (3216) / 3528-19 (B-Case) / 3216-18 (A-Case) — Different footprint requires PCB redesign.; CA45B-B-25V-10UF-K: Larger footprint requires PCB redesign.; T491A106M020AT: Different footprint requires PCB redesign.
Esr	6 Ω	3.0 Ω	1.4 Ω	5 Ω	3.0 Ω / 1.4 Ω / 5 Ω — Lower ESR is beneficial.; CA45B-B-25V-10UF-K: Significantly lower ESR due to polymer tech.; T491A106M020AT: Lower ESR is generally beneficial.
Leakage	1 µA	1.6 µA	2.5 µA	2 µA	1.6 µA / 2.5 µA / 2 µA — Slightly higher leakage current.; CA45B-B-25V-10UF-K: Higher leakage current.; T491A106M020AT: Higher leakage current.
Technology	Tantalum (MnO2)	-	Tantalum Polymer	-	Tantalum Polymer — Different chemistry affects ESR, leakage, and failure mode.

Application & sourcing insights

Questions & answers

Several functional alternatives exist, such as CA45B-A-16V-10uF-K, which offers a higher voltage rating (16V) and lower ESR. However, it comes in a larger A-Case package, requiring a PCB layout change.