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Best Alternatives to SMFJ15A

Package: SOD-123FLMentechCircuit ProtectionTVS polarity: UnidirectionalReverse standoff voltage (VR): 15 VBreakdown voltage (VBR): 16.7 V to 18.5 V at 1 mAMaximum clamping voltage (VC): 24.4 V at IPPMaximum peak pulse current (IPP): 8.2 A

SMFJ15A is a 15V, 200W unidirectional TVS diode in a SOD-123FL package designed for surge protection. This page reviews potential alternatives and their compatibility to aid in sourcing and design.

AI replacement insight

Electrical risklow

For SMF15A, electrical risk is low. For other parts, it is high due to mismatched parameters.

Package risklow

All reviewed candidates with the SOD-123FL package have low physical compatibility risk.

Can it be replaced directly?

Direct replacement for SMFJ15A should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

SMF15A is the most promising alternative, sharing the same package and key electrical ratings like voltage, power, and current.

Main risk

The primary risk is substituting with a bidirectional part (often ending in 'CA') or one with different voltage/current ratings, which could compromise circuit protection.

Recommended alternatives

2
SMF15A package
SMF15A

Yangzhou Yangjie Electronic Technology Co.,Ltd

Needs validationlow risk

Strong alternative with matching package, polarity, voltage, and power ratings. Likely pin-for-pin compatible.

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Alternative comparison matrix

Feature / factorSMFJ15ASMF15ASMF16AAlt 3Compatibility / risk
PackageSOD-123FLSOD-123FLSOD-123FLSOD-123FL — Package matches, enabling form-fit compatibility.; SMF16A: Package matches, enabling form-fit compatibility.
PolarityUnidirectional (implied)Unidirectional (implied)-Unidirectional (implied) — Both parts are unidirectional per industry naming ('A' suffix).
Voltage15.0V15.0V16.0V15.0V / 16.0V — Reverse stand-off voltage matches.; SMF16A: Higher standoff voltage may affect protection level.
Current8.2A8.2A7.7A8.2A / 7.7A — Peak pulse current rating matches.; SMF16A: Lower peak current rating reduces surge survivability.
Power200.0W200.0W200.0W200.0W — Peak pulse power rating matches.; SMF16A: Peak pulse power rating matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for SMFJ15A 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.