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Best Alternatives to FR207

Package: DO-15Microdiode Semiconductor (Shenzhen) Co., Ltd.ComponentDevice Type: Fast recovery rectifier diodeAverage Rectified Output Current: 2.0 A at TA = 55°CPeak Repetitive Reverse Voltage: 1000 VRMS Reverse Voltage: 700 VForward Voltage: 1.2 V max at IF = 2.0 A

FR207 is a 2A, 1000V fast recovery rectifier in a DO-15 package, used in switching power supplies. Key parameters for replacement are voltage, current, package, and reverse recovery time (trr ≤ 500ns).

AI replacement insight

Electrical riskmedium

Mismatched recovery time or forward voltage can affect performance and thermal load.

Package risklow

The DO-15 package is common and many alternatives are available.

Can it be replaced directly?

Direct replacement for FR207 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

HER208 offers an upgrade in switching speed (75ns vs 500ns) while matching all other critical parameters, making it a strong candidate.

Main risk

The main risk is selecting a standard recovery diode (e.g., RL207) which has a much slower recovery time, impacting circuit efficiency and potentially causing failure.

Recommended alternatives

2
HER208 package
HER208

MDD(Microdiode Semiconductor)

Needs validationlow risk

Pin-compatible upgrade with a much faster recovery time while matching package, voltage, and current ratings.

View details

Alternative comparison matrix

Feature / factorFR207HER208UF2010GP_AY_00001RL207Compatibility / risk
PackageDO-15DO-15DO-15DO-15DO-15 — Form factor matches.; UF2010GP_AY_00001: Form factor matches.; RL207: Form factor matches.
Voltage1000V1000V1000V1000V1000V — Reverse voltage matches.; UF2010GP_AY_00001: Reverse voltage matches.; RL207: Reverse voltage matches.
Current2A2A-2A2A — Forward current matches.; RL207: Forward current matches.
Speed500ns75ns75ns>500ns (Standard)75ns / >500ns (Standard) — Faster recovery time is an upgrade.; UF2010GP_AY_00001: Faster recovery time is an upgrade.; RL207: Significantly slower recovery time.
Forward Voltage1.3V-1.7V-1.7V — Higher Vf increases power loss.

Application & sourcing insights

Questions & answers

Verified drop-in options for FR207 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.