CA45-B-20V-22UF-M
XY (Zhenhua Xinyun)
Needs validationlow risk
A direct upgrade with a higher voltage rating (20V) and lower ESR in the same B-case package.
Best Alternatives to CA45-B-16V-22uF-M
Finding a substitute for the XY CA45-B-16V-22uF-M tantalum capacitor involves matching its 22µF capacitance, 16V rating, and B-case package. Several alternatives exist, including direct upgrades and functional alternatives with different dielectric technologies.
AI replacement insight
Package riskhigh
Several candidates have incorrect A-case packages; B-case (3528) must be verified.
Electrical riskmedium
Switching to Polymer Tantalum requires review of leakage current and failure modes.
Sourcing risklow
Multiple manufacturers offer compatible parts in B-case.
Can it be replaced directly?
Yes, CA45-B-20V-22UF-M from the same manufacturer is a potential pin-compatible upgrade with a higher 20V rating. Other functional alternatives exist but require engineering review due to technology differences.
Best replacement path
The safest replacement is CA45-B-20V-22UF-M, which offers a higher voltage rating in the same package and technology.
Main risk
The primary risk is package mismatch; several candidates have different case sizes. Another key consideration is the dielectric material; Polymer Tantalum alternatives offer better ESR but have different electrical characteristics than the standard MnO2 target.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | CA45-B-16V-22uF-M | CA45-B-20V-22UF-M | T521B226M025ATE100 | CA45A-B-16V-22UF-K | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 16V | 20V | 25V | 16V | 20V / 25V / 16V — Higher voltage rating provides increased design margin.; T521B226M025ATE100: Higher voltage rating provides increased design margin.; CA45A-B-16V-22UF-K: matched |
| Esr | 5.0 Ω | 2.0 Ω | 100mΩ | 2.2 Ω | 2.0 Ω / 100mΩ / 2.2 Ω — Lower ESR improves filtering performance.; T521B226M025ATE100: Significantly lower ESR is a major performance upgrade.; CA45A-B-16V-22UF-K: Lower ESR improves filtering performance. |
| Package | B-Case (3528) | B-Case (3528) | B-Case (3528-21) | B-Case (3528-19) | B-Case (3528) / B-Case (3528-21) / B-Case (3528-19) — Same industry standard case size ensures physical compatibility.; T521B226M025ATE100: Same industry standard case size ensures physical compatibility.; CA45A-B-16V-22UF-K: Same industry standard case size ensures physical compatibility. |
| Capacitance | 22µF | 22µF | - | - | 22µF — matched |
| Tolerance | ±20% | ±20% | - | ±10% | ±20% / ±10% — matched; CA45A-B-16V-22UF-K: Tighter tolerance is an improvement. |
| Dielectric | MnO2 Tantalum | - | Polymer Tantalum | Polymer Tantalum | Polymer Tantalum — Different technology. Polymer has lower ESR but different leakage and failure characteristics.; CA45A-B-16V-22UF-K: Different technology. Polymer has lower ESR but different leakage and failure characteristics. |
Application & sourcing insights
Questions & answers
CA45-B-20V-22UF-M is the best alternative, offering a higher voltage rating (20V vs 16V) and lower ESR in the identical package from the same manufacturer.