MUR420G

Single Diodes Overview

The MUR420G is a 4.0 A ultrafast recovery rectifier from onsemi, rated for a maximum repetitive reverse voltage of 200 V. It utilizes a glass-passivated junction and operates within a temperature range of -65 °C to +175 °C. The device features a typical reverse recovery time of 35 ns and a maximum instantaneous forward voltage of 0.89 V at 4.0 A. It supports a nonrepetitive peak surge current of 125 A and is housed in an axial lead DO-201AD package.

Single Diodes Feature Summary

• Ultrafast recovery characteristics designed for high-frequency switching applications
• High-temperature operation capability up to 175 °C junction temperature
• Glass-passivated junction providing corrosion resistance and reliability

Single Diodes Applications

• Switching power supplies
• Inverters
• Free wheeling diodes

Single Diodes Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging type. The standard G suffix indicates bulk plastic bag shipping, while RLG denotes tape and reel configuration. Confirm availability status as some variants in this series are marked discontinued. Ensure compliance with RoHS directives and verify Pb-free package specifications prior to procurement.

Single Diodes Selection Notes

Select the MUR420G when a 200 V blocking voltage and 4 A average forward current are required. Consider its 35 ns reverse recovery time for high-speed switching circuits. Evaluate thermal management requirements based on the specified junction-to-case thermal resistance. Compare forward voltage drop characteristics against alternative rectifiers to ensure efficiency targets are met for the specific load conditions.

Single Diodes Part Context

This component belongs to the MUR4xx series of state-of-the-art switch-mode power rectifiers manufactured by onsemi. The series includes devices with varying reverse voltage ratings from 50 V to 600 V, all sharing similar ultrafast recovery performance and mechanical packaging standards. The MUR420 specifically addresses the 200 V segment of this product line.

Single Diodes Replacement Considerations

Consult the manufacturer's discontinuation notice for obsolete variants like the MUR405G or MUR440G. Verify pinout compatibility and thermal resistance values when substituting with other axial lead rectifiers. Ensure replacement parts meet the same 175 °C operating temperature rating and ultrafast recovery specifications.