
A pin-compatible upgrade with a higher voltage rating (16V) from the same manufacturer.
Find the best replacement for the CA45-A-10V-10uF-K, a 10µF 10V tantalum capacitor. This page details pin-compatible upgrades and functional alternatives to meet your design needs.
Upgrading voltage is safe; other parameters are matched or improved on best candidates.
Many similar parts exist in different case sizes. Verify the 'A' case code (3216).
This is a common capacitor value with multiple cross-vendor options available.
Yes, CA45B-A-16V-10uF-K and CA45A-A-16V-10uF-K are pin-compatible upgrades with higher voltage ratings and improved ESR.
Upgrade to a 16V version in the same package, such as CA45B-A-16V-10uF-K, for increased voltage margin.
The primary risk is selecting an alternative with a different package size (e.g., Case B instead of Case A), which will not fit the PCB footprint.

A pin-compatible upgrade with a higher voltage rating (16V) from the same manufacturer.
| Feature / factor | CA45-A-10V-10uF-K | CA45A-A-16V-10uF-K | CA45B-A-16V-10uF-K | T491A106M020AT | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 10V | 16V | 16V | 20V | 16V / 20V — Higher voltage rating provides more design margin.; CA45B-A-16V-10uF-K: Higher voltage rating provides more design margin.; T491A106M020AT: Higher voltage rating provides more margin. |
| Package | Case A (3216) | Case A (3216) | Case A (3216) | Case A (3216-18) | Case A (3216) / Case A (3216-18) — Same package and footprint.; CA45B-A-16V-10uF-K: Same package and footprint.; T491A106M020AT: Form-fit compatible, slightly taller (1.8mm vs 1.6mm). |
| Capacitance | 10µF | 10µF | 10µF | 10µF | 10µF — Identical capacitance.; CA45B-A-16V-10uF-K: Identical capacitance.; T491A106M020AT: Identical capacitance. |
| Tolerance | ±10% | ±10% | ±10% | ±20% | ±10% / ±20% — Identical tolerance.; CA45B-A-16V-10uF-K: Identical tolerance.; T491A106M020AT: Wider tolerance may affect circuit performance. |
| Esr | 8.0Ω | 7.0Ω | 3.0Ω | - | 7.0Ω / 3.0Ω — Slightly lower ESR is an improvement.; CA45B-A-16V-10uF-K: Lower ESR is generally an improvement. |
The best alternatives are CA45B-A-16V-10uF-K and CA45A-A-16V-10uF-K. They are pin-compatible upgrades with a higher 16V rating from the same manufacturer family.