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Best Alternatives to MURS120T3G

Package: DO-214AA, SMBonsemiDiodes - Rectifiers - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 200 VCurrent - Average Rectified (Io): 1AVoltage - Forward (Vf) (Max) @ If: 875 mV @ 1 ACurrent - Reverse Leakage @ Vr: 2 µA @ 200 V

MURS120T3G is a 200V, 1A Ultrafast Rectifier in an SMB package from onsemi, ideal for high-frequency power applications. When seeking alternatives, focus on matching the recovery time (35ns) and forward voltage.

AI replacement insight

Electrical riskmedium

Vf and trr are critical. Mismatches can cause overheating or switching losses.

Package risklow

Top candidates use the same SMB package, ensuring form-fit compatibility.

Can it be replaced directly?

Direct replacement for MURS120T3G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most promising path is MURS220T3G, an upgrade within the same onsemi product family.

Main risk

The primary risk is using a diode with a slower recovery time (trr > 35ns) or higher forward voltage (Vf), which can degrade circuit efficiency.

Recommended alternatives

2
MURS220T3G package
MURS220T3G

onsemi

Needs validationlow risk

A pin-compatible alternative from the same manufacturer with a higher current rating (2A). Key electricals like voltage and speed match.

View details

Alternative comparison matrix

Feature / factorMURS120T3GMURS220T3GMBRS3200T3GAlt 3Compatibility / risk
PackageSMB (DO-214AA)SMB (DO-214AA)SMB (DO-214AA)SMB (DO-214AA) — Matches target package.; MBRS3200T3G: Matches target package.
Voltage200V200V200V200V — Reverse voltage matches.; MBRS3200T3G: Reverse voltage matches.
Current1A2A3A2A / 3A — Higher current rating is a safe upgrade.; MBRS3200T3G: Higher current rating.
Speed35 ns35 ns-35 ns — Reverse recovery time matches.
Forward Voltage0.875V @ 1AUnknown-Unknown — Vf must be verified from datasheet.
Diode TypeUltrafast-SchottkySchottky — Different technology may affect leakage and switching noise.

Application & sourcing insights

Questions & answers

Verified drop-in options for MURS120T3G 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.