CA45A-B-16V-10uF-K
XY (Zhenhua Xinyun)
Needs validationlow risk
Pin-compatible alternative from the same manufacturer with identical ratings and improved ESR.
Best Alternatives to CA45-B-16V-10uF-K
Finding a substitute for the CA45-B-16V-10uF-K, a 10µF 16V tantalum capacitor in a B-case, involves matching capacitance, tolerance, and package size while ensuring the voltage rating is equal or higher. Several upgrades and alternatives exist.
AI replacement insight
Electrical risklow
Low if voltage is >= 16V and tolerance is <= ±10%.
Package riskmedium
Medium, as different case codes (A, B, C) have different footprints. Must match 'B'.
Sourcing risklow
This is a common capacitor value and package size with multiple vendors.
Can it be replaced directly?
Direct replacement for CA45-B-16V-10uF-K should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The safest path is choosing a part from the same manufacturer series with identical or improved ratings, such as CA45A-B-16V-10uF-K (direct) or CA45A-B-25V-10uF-K (upgrade).
Main risk
The main risk is selecting a part with a wider tolerance (e.g., ±20%) or a different package footprint, which would require circuit re-evaluation or PCB changes.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | CA45-B-16V-10uF-K | CA45A-B-16V-10uF-K | CA45-B-20V-10uF-K | CA45A-B-25V-10uF-K | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Case B | B | B (3528) | B | B / B (3528) / 3528-19 (B-Case) — Matches target Case B.; CA45-B-20V-10uF-K: Matches target Case B.; CA45A-B-25V-10uF-K: Matches target Case B.; CA45B-B-25V-10UF-K: Matches target Case B. |
| Voltage | 16V | 16V | 20V | 25V | 16V / 20V / 25V — Voltage rating is identical.; CA45-B-20V-10uF-K: Higher voltage rating provides more design margin.; CA45A-B-25V-10uF-K: Higher voltage rating provides more design margin.; CA45B-B-25V-10UF-K: Higher voltage rating. |
| Capacitance | 10uF | 10uF | - | - | 10uF — Capacitance is identical. |
| Tolerance | ±10% | ±10% | ±10% | ±10% | ±10% — Tolerance is identical.; CA45-B-20V-10uF-K: Tolerance is identical.; CA45A-B-25V-10uF-K: Tolerance is identical. |
| Esr | 6.0Ω | 2.8Ω | 1.5Ω | 3.0Ω | 2.8Ω / 1.5Ω / 3.0Ω / 1.4Ω — Lower ESR is generally beneficial.; CA45-B-20V-10uF-K: Significantly lower ESR is a performance upgrade.; CA45A-B-25V-10uF-K: Lower ESR is generally beneficial.; CA45B-B-25V-10UF-K: Significantly lower ESR due to polymer dielectric. |
| Dielectric | Tantalum (MnO2) | - | - | - | Tantalum Polymer — Polymer has different characteristics (lower ESR, leakage). |
Application & sourcing insights
Questions & answers
Verified drop-in options for CA45-B-16V-10uF-K 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.