MURHF860CT

Overview

The MURHF860CT is an ultrafast switch-mode power rectifier manufactured by onsemi. It features a dual common cathode configuration housed in a TO-220 Fullpak (Case 221D) package with three pins. The device supports a peak repetitive reverse voltage of 600 V and provides a total average rectified forward current of 8.0 A per leg at a case temperature of 120°C. Electrical characteristics include a maximum instantaneous forward voltage of 2.5 V at 4.0 A and 150°C, or 2.8 V at 25°C. The peak reverse recovery time is specified at 35 ns under conditions of 1.0 A forward current and a di/dt of 50 A/µs. Maximum ratings also encompass a non-repetitive peak surge current of 100 A and an operating junction temperature range from -65°C to +150°C.

Feature Summary

• Ultrafast 35 nanosecond recovery times for high-frequency switching applications
• Electrically isolated construction eliminating the need for additional isolation hardware
• High voltage capability up to 600 V with low leakage current specifications at elevated temperatures
• High temperature glass passivated junction ensuring reliability

Applications

• Switching power supplies
• Inverters
• Free wheeling diodes

Procurement Notes

Verify the specific ordering suffix when purchasing. The datasheet indicates that the 'G' suffix denotes a lead-free package. Confirm whether the required component includes this environmental designation based on project compliance requirements. Ensure the package type matches the intended PCB footprint, as variations exist within the product family.

Selection Notes

Select this component for circuits requiring fast recovery characteristics and high voltage blocking capabilities. The TO-220 Fullpak package facilitates heat dissipation through the mounting surface. Consider the thermal resistance of 4.1 °C/W per leg when designing the heatsinking strategy. Verify that the 600 V rating aligns with the system's peak reverse voltage demands.

Part Context

This device belongs to the MURHF series of ultrafast rectifiers produced by onsemi. It is designed specifically for switch-mode power applications where rapid switching speeds are critical. The product utilizes silicon technology and is packaged in a standard TO-220 form factor suitable for through-hole mounting.

Replacement Considerations

Public confirmed substitute part numbers: MURH860CT, MURF860G.