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Best Alternatives to NSR1020MW2T1G

Package: SC-76, SOD-323onsemiDiodes - 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: 540 mV @ 1 ACurrent - Reverse Leakage @ Vr: 40 µA @ 15 V

NSR1020MW2T1G is a 20V, 1A low forward voltage Schottky diode in a SOD-323 package, qualified for automotive applications. Finding a direct replacement requires careful review of forward voltage and qualification standards.

AI replacement insight

Electrical riskmedium

Higher forward voltage in all candidates increases power loss (P=Vf*If).

Package risklow

All kept candidates use the same SOD-323 package.

Application riskhigh

Target is AEC-Q101 qualified; substitutes are not, posing a risk for automotive designs.

Can it be replaced directly?

No verified direct drop-in replacement exists. MS2A40LWS is a strong candidate but requires review for its slightly higher forward voltage and lack of automotive qualification.

Best replacement path

MS2A40LWS offers the closest performance with upgraded voltage and current ratings, but requires verifying the impact of its slightly higher forward voltage.

Main risk

Increased power dissipation and heat due to substitutes having a higher forward voltage (VF).

Recommended alternatives

3
MS2A40LWS package
MS2A40LWS

MSKSEMI

Needs validationlow risk

A strong alternative in the same package with higher voltage/current ratings, but slightly higher forward voltage.

View details

Alternative comparison matrix

Feature / factorNSR1020MW2T1GMS2A40LWSPSBD3D40V1HRB550V-30Compatibility / risk
PackageSOD-323SOD-323SOD-323SOD-323SOD-323 — Same package and pin count.; PSBD3D40V1H: Same package and pin count.; RB550V-30: Same package and pin count.
Diode TypeSchottkySchottkySchottkySchottkySchottky — Both are Schottky diodes.; PSBD3D40V1H: Both are Schottky diodes.; RB550V-30: Both are Schottky diodes.
Voltage20V40V40V30V40V / 30V — Candidate has higher voltage rating.; PSBD3D40V1H: Candidate has higher voltage rating.; RB550V-30: Candidate has higher voltage rating.
Current1A2A1A1A2A / 1A — Candidate has higher current rating.; PSBD3D40V1H: Current rating matches.; RB550V-30: Current rating matches.
Forward Voltage~0.34V @ 1A0.42V @ 1A0.55V @ 1A0.56V @ 1A0.42V @ 1A / 0.55V @ 1A / 0.56V @ 1A — Slightly higher than target's typical 0.34V @ 1A.; PSBD3D40V1H: Significantly higher than target's typical 0.34V @ 1A.; RB550V-30: Significantly higher than target's typical 0.34V @ 1A.
QualificationAEC-Q101Commercial--Commercial — Candidate is not AEC-Q101 qualified.

Application & sourcing insights

Questions & answers

MS2A40LWS by MSKSEMI is a strong functional alternative with similar electrical characteristics and a higher power rating, though it is not automotive qualified.