CA45-D-10V-220uF-K
TORCH
Needs validationhigh risk
Functional alternative with better specs (voltage, tolerance) but requires a larger PCB footprint (D-Case).
Best Alternatives to CA45-B-6.3V-220UF-M
CA45-B-6.3V-220UF-M is a 220µF 6.3V tantalum capacitor in a compact 3528 B-Case package. Finding a substitute requires careful verification of the package, as many functional alternatives exist but in larger physical sizes.
AI replacement insight
Package riskhigh
Alternatives are in larger packages (e.g., D-Case) and will not fit the target's B-Case footprint.
Electrical risklow
Most candidates offer upgraded voltage and similar or better ESR, but temperature range may be reduced.
Sourcing risklow
Many manufacturers produce functionally similar parts, but finding the exact B-Case package is key.
Can it be replaced directly?
No, a direct, pin-compatible replacement for CA45-B-6.3V-220UF-M was not found in this review. All functional alternatives require a different, larger PCB footprint.
Best replacement path
Search for a 220µF, ≥6.3V Tantalum or Polymer Tantalum capacitor specifically in an EIA B-Case / 3528 package.
Main risk
The primary risk is package incompatibility. The target's 3528 B-Case is significantly smaller than the 7343 D-Case of most alternatives.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | CA45-B-6.3V-220UF-M | CA45-D-10V-220uF-K | 10TPB220ML | 10TPE220ML | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3528-21 (Case B) | D (7343) | D3L (7343) | D3L (7343) | D (7343) / D3L (7343) / D Case (7343) — Not a physical fit for target's B Case (3528). Requires PCB redesign.; 10TPB220ML: Not a physical fit for target's B Case (3528). Requires PCB redesign.; 10TPE220ML: Not a physical fit for target's B Case (3528). Requires PCB redesign.; PXTD010M227E040STU: Not a physical fit for target's B Case (3528). Requires PCB redesign. |
| Voltage | 6.3V | 10V | 10V | 10V | 10V — Higher voltage rating provides increased design margin.; 10TPB220ML: Higher voltage rating provides increased design margin.; 10TPE220ML: Higher voltage rating provides increased design margin.; PXTD010M227E040STU: Higher voltage rating provides increased design margin. |
| Tolerance | ±20% | ±10% | - | - | ±10% — Tighter tolerance is a performance upgrade. |
| Temperature | -55°C to 125°C | -55°C to +125°C | -55°C to 105°C | -55°C to 105°C | -55°C to +125°C / -55°C to 105°C — matched; 10TPB220ML: Reduced maximum operating temperature.; 10TPE220ML: Reduced maximum operating temperature.; PXTD010M227E040STU: Reduced maximum operating temperature. |
| Esr | ≤1500 mΩ | - | - | 25 mΩ | 25 mΩ — Significantly lower ESR is a major performance upgrade. |
| Capacitance | 220µF | - | - | - | 220µF — matched |
| Technology | Manganese Tantalum | - | - | - | Polymer Tantalum — Different chemistry, typically lower ESR but may have different leakage characteristics. |
Application & sourcing insights
Questions & answers
No direct drop-in replacement was identified. The best functional alternatives, like the TORCH CA45-D-10V-220uF-K, offer upgraded electricals but come in a larger D-Case package, requiring a PCB layout change.