
NK Technologies
Likely the same part from the same manufacturer, matching all key specifications.
Searching for a replacement for the 1N4007(M7)SMA rectifier diode? This guide reviews compatible alternatives, including pin-to-pin matches and functional upgrades in the same SMA package.
Significant differences in recovery time for several candidates require careful review.
All candidates use the same SMA (DO-214AC) package, ensuring form and fit compatibility.
This is a very common diode type with many manufacturers and available stock.
Direct replacement for 1N4007(M7)SMA should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
For a direct replacement, consider the M7(SMA) or M7A, which match the general-purpose rectifier type, 1000V/1A rating, and SMA package. For an upgrade, M20 offers higher voltage.
The main risk is substituting a general-purpose rectifier with a fast, super-fast, or ultra-fast recovery diode (like RS1M, ES1M, US2M) without verifying circuit compatibility, which can lead to EMI or instability.

NK Technologies
Likely the same part from the same manufacturer, matching all key specifications.
| Feature / factor | 1N4007(M7)SMA | M7(SMA) | M7A | M20 | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | NK Technologies | NK Technologies | - | - | NK Technologies — Same manufacturer as target. |
| Package | SMA | SMA (DO-214AC) | SMA (DO-214AC) | SMA (DO-214AC) | SMA (DO-214AC) — Package matches target.; M7A: Package matches target.; M20: Package matches target.; RS1M: Package matches target. |
| Voltage | 1000.0V | 1000.0V | 1000.0V | 2000.0V | 1000.0V / 2000.0V — Reverse voltage matches.; M7A: Reverse voltage matches.; M20: Higher voltage rating provides more margin.; RS1M: Reverse voltage matches. |
| Current | 1.0A | 1.0A | 1.0A | 1.0A | 1.0A — Forward current matches.; M7A: Forward current matches.; M20: Forward current matches.; RS1M: Forward current matches. |
| Application | General Purpose | - | General Purpose | - | General Purpose / Fast Recovery — Matches general purpose rectifier type.; RS1M: Candidate is a fast recovery diode, target is general purpose. May cause ringing. |
Verified drop-in options for 1N4007(M7)SMA 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.