SMFJ5.0CA
FUXINSEMI
Needs validationlow risk
A strong alternative in the same package with matching key electrical ratings.
Best Alternatives to SMF5.0CA
SMF5.0CA is a 200W, 5V bidirectional TVS diode in a SOD-123FL package for surge protection. Finding a substitute requires matching polarity, standoff voltage, and power handling.
AI replacement insight
Electrical riskhigh
High risk if using parts with different polarity or voltage ratings.
Package risklow
SOD-123FL is a common package, so fit is not a major concern.
Sourcing risklow
Multiple vendors produce similar 5.0V TVS diodes in this package.
Can it be replaced directly?
Direct replacement for SMF5.0CA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
SMFJ5.0CA is the most promising direct replacement, matching all key parameters.
Main risk
The main risk is using a part with incorrect polarity (unidirectional) or a different standoff voltage, which would compromise circuit protection.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | SMF5.0CA | SMFJ5.0CA | SMF6.0CA | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-123FL | SOD-123FL | SOD-123FL | SOD-123FL — Same package ensures form-fit compatibility.; SMF6.0CA: Same package ensures form-fit compatibility. | |
| Polarity Or Type | Bidirectional TVS | Bi-directional TVS | Bidirectional | Bi-directional TVS / Bidirectional — Functionally identical bidirectional protection.; SMF6.0CA: Matches bidirectional protection type. | |
| Voltage V | 5.0V | 5.0V | 6.0V | 5.0V / 6.0V — Matches reverse standoff voltage for correct protection level.; SMF6.0CA: Higher standoff voltage may not protect a 5V rail. | |
| Power W | 200.0W | 200.0W | - | 200.0W — Identical peak pulse power handling. | |
| Current A | 21.7A | 21.7A | 19.4A | 21.7A / 19.4A — Identical peak pulse current handling.; SMF6.0CA: Lower peak current rating offers less surge protection. |
Application & sourcing insights
Questions & answers
Verified drop-in options for SMF5.0CA 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.