What risks should I check before replacing SMFJ24CA?

Key risks include polarity, package dimensions, and electrical ratings. Ensure the replacement is bi-directional, fits the SOD-123FL footprint, and meets or exceeds the 24V standoff voltage, 200W power, and 5.1A peak current ratings.

SMFJ24CA Alternatives, Datasheet & Cross Reference | BORN

SMFJ24CA is a 200W bi-directional TVS diode in a SOD-123FL package with a 24V standoff voltage. This page reviews potential alternatives, highlighting key parametric differences for engineers.

AI replacement insight

Electrical risklow

Low for SMF24CA, but medium/high for others due to lower current or different voltage.

Package risklow

All reviewed candidates use the same SOD-123FL package.

Firmware risklow

Not applicable for this passive component.

Can it be replaced directly?

Direct replacement for SMFJ24CA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

SMF24CA offers the most direct replacement path, matching all critical parameters.

Main risk

The main risk is substituting with a uni-directional diode by mistake, or choosing a part with a lower peak current rating.

Recommended alternatives

Strong alternative with matching package, polarity, and key electrical ratings.

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Alternative comparison matrix

Feature / factor	SMFJ24CA	SMF24CA	SMFJ28CA	SMF26CA	Compatibility / risk
Package	SOD-123FL	SOD-123FL	SOD-123FL	SOD-123FL	SOD-123FL — Same package family.; SMFJ28CA: Same package family.; SMF26CA: Same package family.
Polarity	Bi-directional	Bi-directional	Bi-Directional	Bidirectional	Bi-directional / Bi-Directional / Bidirectional — Functionally identical polarity.; SMFJ28CA: Functionally identical polarity.; SMF26CA: Functionally identical polarity.
Voltage	24.0V	24.0V	28.0V	26.0V	24.0V / 28.0V / 26.0V — Reverse standoff voltage matches.; SMFJ28CA: Higher standoff voltage may affect protection level.; SMF26CA: Slightly higher standoff voltage.
Power	200.0W	200.0W	200.0W	200.0W	200.0W — Peak pulse power matches.; SMFJ28CA: Peak pulse power matches.; SMF26CA: Peak pulse power matches.
Current	5.1A	5.1A	4.4A	4.8A	5.1A / 4.4A / 4.8A — Peak pulse current matches.; SMFJ28CA: Lower peak pulse current rating is a downgrade.; SMF26CA: Lower peak pulse current rating is a downgrade.

Application & sourcing insights

Questions & answers

Verified drop-in options for SMFJ24CA 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.