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Best Alternatives to M7

Package: SMAShenzhen SLKOR Micro Semicon Co., Ltd.Single DiodesMaximum repetitive peak reverse voltage: 1000 VMaximum RMS voltage: 700 VMaximum DC blocking voltage: 1000 VMaximum average forward rectified current: 1 APeak forward surge current: 30 A

M7 is a general-purpose 1000V, 1A rectifier diode in a common SMA (DO-214AC) package. Several pin-compatible alternatives from major manufacturers are available for replacement.

AI replacement insight

Electrical riskmedium

Substituting a fast or ultrafast diode for a standard one can cause EMI or timing issues.

Package risklow

The SMA (DO-214AC) package is standardized and widely available.

Sourcing risklow

This is a very common diode type with many manufacturers and high availability.

Can it be replaced directly?

Direct replacement for M7 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use a standard recovery 1000V, 1A diode in an SMA package like MRA4007T3G or 1N4007 M7.

Main risk

Using a diode with a different recovery time (e.g., fast or ultrafast) instead of a standard recovery type.

Recommended alternatives

3
MRA4007T3G package
MRA4007T3G

onsemi

Needs validationlow risk

Pin-compatible standard recovery diode from a major manufacturer with matching key electrical ratings.

View details

Alternative comparison matrix

Feature / factorM7MRA4007T3G1N4007 M7RS1MCompatibility / risk
PackageSMA (DO-214AC)SMA (DO-214AC)--SMA (DO-214AC) — Package matches target.
Voltage1000V1000V--1000V — Reverse voltage matches.
Current1A1A--1A — Forward current matches.
Diode TypeStandard RecoveryStandard Recovery--Fast Recovery (~500ns) — Functionally different from target's standard recovery.
Forward Voltage1.1V-1.0V-~1.3V — Higher Vf increases power loss.

Application & sourcing insights

Questions & answers

Verified drop-in options for M7 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.