Is there a pin-compatible replacement for MURS120-13-F?

ES2D-13-F uses the same 2-pin SMB package and is likely pin-compatible. However, due to electrical differences like its lower max temperature, it is classified as a functional alternative requiring engineering review, not a direct drop-in replacement.

What risks should I check before replacing MURS120-13-F?

The main risk is substituting a diode with a slower reverse recovery time (trr), which can cause failure in high-frequency applications. Also check for higher forward voltage (Vf), which increases heat, and lower maximum operating temperature, which can reduce reliability.

MURS120-13-F Alternatives, Datasheet & Cross Reference | Diodes Incorporated

MURS120-13-F is a 1A, 200V ultrafast recovery rectifier in an SMB package, used in high-frequency power supplies. Finding a substitute requires matching its 25ns recovery time and thermal performance.

AI replacement insight

Electrical riskhigh

Recovery time (trr) is critical. A slower diode can cause circuit failure or high losses.

Package risklow

The SMB package is standard, making mechanical replacement straightforward.

Sourcing riskmedium

Availability of suitable ultrafast rectifiers should be confirmed with distributors.

Can it be replaced directly?

No verified direct drop-in replacement exists. ES2D-13-F is a strong functional alternative that requires engineering review of its lower temperature rating.

Best replacement path

ES2D-13-F is the most promising path, offering upgraded current and matched recovery speed. Verify the lower max temperature is acceptable for the application.

Main risk

The primary risk is substituting with a slower diode (e.g., standard recovery), which will fail in high-frequency circuits. Mismatched forward voltage (Vf) and temperature ratings are also key concerns.

Recommended alternatives

A strong functional match with the same package, voltage, and recovery time, plus higher current rating. Review lower max temperature.

View details

Alternative comparison matrix

Feature / factor	MURS120-13-F	ES2D-13-F	MURS160-13-F	Compatibility / risk
Package	SMB	SMB	SMB	SMB — Same package family.; MURS160-13-F: Same package family.
Voltage	200V	200V	600V	200V / 600V — Reverse voltage matches.; MURS160-13-F: Higher reverse voltage rating.
Current	1.0A	2.0A	1.0A	2.0A / 1.0A — Higher forward current capability.; MURS160-13-F: Forward current matches.
Trr	25ns	25ns	50ns	25ns / 50ns — Reverse recovery time matches.; MURS160-13-F: Slower recovery time, may not be suitable.
Temperature	-55 to +175°C	-55 to +150°C	-55 to +150°C	-55 to +150°C — Lower maximum operating temperature.; MURS160-13-F: Lower maximum operating temperature.
Vf	0.875V	-	1.25V	1.25V — Higher forward voltage drop increases power loss.

Application & sourcing insights

Questions & answers

The best alternative identified is ES2D-13-F. It matches the critical 25ns recovery time and 200V rating, offers higher current (2A), but has a lower max temperature (150°C) that must be verified for your design.