Best Alternatives to CA45-A-6.3V-47uF-K

Package: 3216 (1206 Metric)NHTantalum CapacitorsCapacitance: 47 µFRated Voltage: 6.3 VTolerance: ±10%Case Code: AESR (100kHz, 25°C): 5.0 Ω (max)

CA45-A-6.3V-47uF-K is a 47uF 6.3V Case A tantalum capacitor. No pin-compatible replacement is verified from these candidates.

AI replacement insight

Electrical riskmedium

ESR, leakage and ripple need checking.

Package riskhigh

Most candidates are not Case A.

Firmware risklow

Passive part; no firmware impact.

Sourcing riskmedium

One candidate is NRND and rejected.

Can it be replaced directly?

No verified pin-compatible replacement is available in this set.

Best replacement path

First seek a 47uF 6.3V ±10% Case A tantalum; otherwise review CA45-B or 1206 MLCC options.

Main risk

Package mismatch or tantalum-to-MLCC behavior change.

Recommended alternatives

4
CA45-B-10V-47uF-K package
CA45-B-10V-47uF-K

XY (Zhenhua Xinyun)

Needs validationmedium risk

CA45-B-10V-47uF-K may work electrically if the larger Case B footprint is acceptable.

View details

Alternative comparison matrix

Feature / factorCA45-A-6.3V-47uF-KCA45-B-10V-47uF-KCA45-B-16V-47uF-KHGC1206R5476M250NSPJCompatibility / risk
Package3216/1206 Case A3528 Case B--1206/3216 — nominal same size
Pinout2 terminals2 terminals--2 terminals — polarity not checked
Voltage6.3V10V--25V — rating margin
Tolerance±10%±10%--±10% — same value
Temperature-55..125C-55..125C---55..125C — ES field
Applicationtantalum bulk cap-tantalum bulk cap-tantalum bulk cap — same type

Application & sourcing insights

Questions & answers

The safest path is another 47uF 6.3V ±10% Case A tantalum. In this set, CA45-B parts need layout review.