MURS340-M3/57T

Single Diodes Overview

The MURS340-M3/57T is a surface-mount ultrafast plastic rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a glass passivated pellet chip junction and is housed in an SMC (DO-214AB) package. The device supports a maximum repetitive peak reverse voltage of 400 V and a maximum average forward rectified current of 3.0 A at a lead temperature of 130 °C. Key electrical characteristics include a maximum instantaneous forward voltage of 1.28 V at 4.0 A, a peak forward surge current capability of 125 A, and a typical reverse recovery time of 50 ns. The operating junction and storage temperature range extends from -65 °C to +175 °C.

Single Diodes Feature Summary

• Ultrafast reverse recovery time for high efficiency and low switching losses
• High forward surge current capability
• Glass passivated pellet chip junction
• Halogen-free and RoHS-compliant commercial grade construction

Single Diodes Applications

• High frequency rectification in switching mode converters
• Freewheeling applications in inverters
• Consumer electronics power supplies
• Computer equipment power systems
• Automotive electronic circuits
• Telecommunication infrastructure

Single Diodes Procurement Notes

Verify the specific ordering code suffix to confirm compliance requirements. The base part number with the -M3 suffix indicates a halogen-free, RoHS-compliant commercial grade product. Confirm that the delivery mode matches the required packaging quantity, as standard reels typically contain 850 units. Ensure the component meets the necessary material categorization standards for your region before finalizing procurement.

Single Diodes Selection Notes

Select this component for designs requiring fast switching speeds and high reliability in surface-mount applications. The SMC package provides robust mechanical stability and thermal performance suitable for automated placement processes. Consider the 400 V reverse voltage rating and 3.0 A continuous current capacity when matching circuit requirements. Verify thermal management needs against the specified junction temperature limits and derating curves.

Single Diodes Part Context

This component belongs to the MURS340/MURS360 series of surface-mount ultrafast plastic rectifiers. The series is designed for high-frequency rectification and freewheeling duties in various converter and inverter topologies. Vishay offers multiple variants within this family, distinguished by voltage ratings and qualification levels, such as automotive-grade options available under different ordering codes.

Single Diodes Replacement Considerations

Direct substitutes within the same series include the MURS360-M3/57T, which shares identical physical dimensions and electrical characteristics except for a higher 600 V reverse voltage rating. Other compatible replacements may include equivalent ultrafast rectifiers from other manufacturers that match the DO-214AB package, 3 A current rating, and 50 ns reverse recovery specifications.

Single Diodes FAQ

What does the polarity marking on the MURS340-M3/57T indicate?

A color band on the component body denotes the cathode end.

Is the MURS340-M3/57T qualified for automotive applications?

No, the -M3 suffix indicates a commercial grade product. Automotive qualification requires the HE3 or HM3 suffixes per the AEC-Q101 standard.

What is the maximum operating junction temperature for this rectifier?

The maximum operating junction temperature is +175 °C.