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Best Alternatives to FR107W

Package: SOD-123FLYintRectifiersMaximum repetitive peak reverse voltage: 1000 VMaximum RMS voltage: 700 VMaximum DC blocking voltage: 1000 VMaximum average forward rectified current: 1 A at Tc = 125 °CPeak forward surge current: 30 A

FR107W is a 1A, 1000V Fast Recovery Rectifier in a compact SOD-123FL package, ideal for high-frequency applications. Several pin-compatible alternatives and functional substitutes are available, but careful attention to the recovery speed is critical for a successful replacement.

AI replacement insight

Electrical riskhigh

Using a standard diode instead of a fast recovery one will likely cause circuit malfunction in switching power supplies or inverters.

Package risklow

Many alternatives are available in the same SOD-123FL package, ensuring mechanical compatibility.

Sourcing risklow

This is a common diode type with many manufacturers, but attention to the 'Fast Recovery' spec is crucial.

Can it be replaced directly?

Direct replacement for FR107W should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The best replacement path is to select another Fast Recovery Rectifier with similar specifications, such as FR107 or F7 in the SOD-123FL package. These parts match the critical recovery time characteristic.

Main risk

The main risk is substituting a standard (slow) recovery diode for this fast recovery part. This can lead to excessive heat, reduced efficiency, and circuit failure in switching applications.

Recommended alternatives

6
F7 package
F7

GOODWORK

Needs validationlow risk

A Fast Recovery Rectifier often marked 'F7', with matching package and key electrical ratings.

View details

Alternative comparison matrix

Feature / factorFR107WF7FR1071N4007WCompatibility / risk
PackageSOD-123FLSOD-123FL--SOD-123FL — Package matches, enabling form-fit compatibility.
Voltage1000V1000V--1000V — Reverse voltage rating matches the target.
Current1.0A1.0A--1.0A — Forward current rating matches the target.
Diode TypeFast Recovery (Trr 500ns)Fast Recovery (500ns)--Fast Recovery (500ns) — Matches target's Fast Recovery type and speed.
Forward Voltage1.3V-1.3V-1.3V — Forward voltage matches the target.

Application & sourcing insights

Questions & answers

Verified drop-in options for FR107W 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.