SM4007PL
MDD(Microdiode Semiconductor)
Needs validationlow risk
A strong alternative from another manufacturer, matching package, voltage, current, and forward voltage.
Best Alternatives to FM4007
The FM4007 is a widely used 1000V, 1A general-purpose rectifier in a compact SOD-123FL package. Finding a suitable replacement involves matching these key ratings and ensuring the forward voltage is comparable to maintain efficiency.
AI replacement insight
Electrical riskmedium
Mismatched diode type (fast vs. general purpose) or forward voltage can significantly alter circuit performance and efficiency.
Package risklow
SOD-123FL is a standard package, but verifying the datasheet's land pattern is always recommended for automated assembly.
Can it be replaced directly?
Direct replacement for FM4007 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use a general-purpose rectifier like SM4007PL, which matches the target's key parameters of 1000V, 1A, and 1.1V forward voltage.
Main risk
The main risk is substituting with a fast or ultrafast recovery diode, which often has a higher forward voltage, leading to increased heat and lower efficiency.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | FM4007 | SM4007PL | SM4007PL A7 | FR107W | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-123FL | SOD-123FL | SOD-123FL | SOD-123FL | SOD-123FL — Matches target package.; SM4007PL A7: Matches target package.; FR107W: Matches target package. |
| Voltage | 1000V | 1000V | 1000V | 1000V | 1000V — Reverse voltage matches.; SM4007PL A7: Reverse voltage matches.; FR107W: Reverse voltage matches. |
| Current | 1.0A | 1.0A | 1.0A | 1.0A | 1.0A — Forward current matches.; SM4007PL A7: Forward current matches.; FR107W: Forward current matches. |
| Forward Voltage | 1.1V @ 1A | 1.1V @ 1A | 1.1V @ 1A | 1.3V @ 1A | 1.1V @ 1A / 1.3V @ 1A — Forward voltage matches target.; SM4007PL A7: Forward voltage matches target.; FR107W: Higher Vf will increase power dissipation. |
| Diode Type | General Purpose | - | General Purpose | - | General Purpose — Matches general purpose rectifier type. |
| Recovery Time | Standard | - | - | 500ns | 500ns — Fast recovery type, vs target's standard recovery. |
Application & sourcing insights
Questions & answers
Verified drop-in options for FM4007 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.