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Best Alternatives to FFM107-M

Package: SOD-123FLJiangsu Changjing Electronics Technology Co., Ltd.Diodes - Rectifiers - SingleForward Current (IF(AV)): 1 APeak Reverse Voltage (VRRM): 1000 VForward Voltage (VF): 1.3 VReverse Recovery Time (trr): 500 nsPackage Type: SOD-123FL

FFM107-M is a 1A, 1000V fast recovery diode in a SOD-123FL package. Alternatives exist with similar or improved characteristics, but key parameters like recovery time (trr) and forward voltage (Vf) must be carefully reviewed.

AI replacement insight

Electrical riskhigh

Mismatched recovery time (trr) or higher forward voltage (Vf) can cause circuit failure or overheating.

Package risklow

Several candidates share the same SOD-123FL package, but land pattern verification is always advised.

Can it be replaced directly?

Direct replacement for FFM107-M should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

RS2MW offers an upgrade in current rating while matching the critical recovery time and package.

Main risk

The primary risk is substituting with a standard or general-purpose diode, which will have a much slower recovery time (trr) than the target's 500ns, potentially causing circuit malfunction in switching applications.

Recommended alternatives

3
RS2MW package
RS2MW

Slkor(SLKORMICRO Elec.)

Needs validationmedium risk

Strong alternative with a higher current rating and matching package, voltage, and recovery time.

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Alternative comparison matrix

Feature / factorFFM107-MRS2MWUS1MFADHE1MCompatibility / risk
PackageSOD-123FLSOD-123FLSOD-123FLSOD-123FLSOD-123FL — Matches target package.; US1MFA: Matches target package.; DHE1M: Matches target package.
Voltage1000V1000V--1000V — Matches target reverse voltage.
Current1A2A--2A — Higher current rating is a safe upgrade.
Trr500ns500ns75ns75ns500ns / 75ns — Matches target's fast recovery time.; US1MFA: Much faster recovery time is a performance upgrade.; DHE1M: Much faster recovery time is a performance upgrade.
Vf1.3V @ 1A1.3V @ 2A1.7V1.7V1.3V @ 2A / 1.7V — Forward voltage at 1A is likely lower, improving efficiency.; US1MFA: Higher forward voltage will increase power loss and heat.; DHE1M: Higher forward voltage will increase power loss and heat.
QualificationNone-AEC-Q101-AEC-Q101 — Automotive qualification may be beneficial.

Application & sourcing insights

Questions & answers

Verified drop-in options for FFM107-M 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.