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Best Alternatives to MBRM120ET1G

Package: DO-216AAonsemiDiodes - Rectifiers - SinglePackage: Tape & Reel (TR); Cut Tape (CT); Digi-Reel®Voltage - DC Reverse (Vr) (Max): 20 VCurrent - Average Rectified (Io): 1AVoltage - Forward (Vf) (Max) @ If: 530 mV @ 1 ACurrent - Reverse Leakage @ Vr: 10 µA @ 20 V

Finding a replacement for the onsemi MBRM120ET1G, a low-leakage 20V, 1A Schottky diode, requires careful balancing of electrical trade-offs. While pin-compatible options exist, they often sacrifice key parameters like reverse leakage or operating temperature.

AI replacement insight

Electrical riskhigh

Candidates have significantly different reverse leakage (IR) or forward voltage (VF), a critical trade-off for Schottky diodes.

Package riskmedium

While some candidates match the package, others require a board redesign. The target's low-profile POWERMITE package is a key feature.

Can it be replaced directly?

Direct replacement for MBRM120ET1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

MBRM140T1G is the closest form-fit match but requires careful engineering review of its higher reverse leakage and narrower temperature range.

Main risk

The primary risk is increased reverse leakage current, which can degrade system efficiency and cause thermal issues, especially in battery-powered or high-temperature applications.

Recommended alternatives

3
MBRM140T1G package
MBRM140T1G

onsemi

Needs validationmedium risk

Pin-compatible alternative with higher voltage but also higher reverse leakage and a narrower temperature range.

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Alternative comparison matrix

Feature / factorMBRM120ET1GMBRM140T1GUMW SS36BMBRM120LT1GCompatibility / risk
PackageDO-216AADO-216AASMB (DO-214AA)DO-216AADO-216AA / SMB (DO-214AA) — Package matches, enabling form-fit compatibility.; UMW SS36B: Different, larger package requires board redesign.; MBRM120LT1G: Package matches, enabling form-fit compatibility.
Voltage20V40V60V-40V / 60V — Higher voltage rating provides more design margin.; UMW SS36B: Higher voltage rating provides more design margin.
Current1A1A3A-1A / 3A — Current rating matches the target.; UMW SS36B: Higher current rating provides more design margin.
Forward Voltage0.53V @ 1A0.55V @ 1A~0.55V @ 1A0.5V @ 1A0.55V @ 1A / ~0.55V @ 1A / 0.5V @ 1A — Slightly higher forward voltage may increase power loss.; UMW SS36B: Slightly higher forward voltage may increase power loss.; MBRM120LT1G: Lower forward voltage improves efficiency.
Reverse Current10µA @ 20V0.5mA @ 40V-400µA @ 20V0.5mA @ 40V / 400µA @ 20V — Significantly higher reverse leakage current is a major risk.; MBRM120LT1G: Extremely high reverse leakage is a critical risk.
Temperature-65°C to 150°C-55°C to 125°C--65°C to 125°C-55°C to 125°C / -65°C to 125°C — Narrower operating temperature range.; MBRM120LT1G: Reduced maximum operating temperature.

Application & sourcing insights

Questions & answers

Verified drop-in options for MBRM120ET1G 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.