MUR3040PTG

Overview

The MUR3040PTG is a silicon ultrafast recovery rectifier diode manufactured by onsemi. It features a common cathode configuration with two elements housed in a TO-218AC (TO-220AB) plastic package. The device supports a maximum repetitive peak reverse voltage of 400 V and an average forward current of 15 A. Key electrical parameters include a maximum non-repetitive peak forward surge current of 150 A, a maximum forward voltage of 1.2 V, and a junction temperature range from -55 °C to 175 °C.

Feature Summary

• Ultrafast soft recovery characteristics designed for high-frequency switching applications
• Common cathode dual element configuration for bridge or freewheeling circuits
• Flange mount construction with cathode connected to the case for efficient heat dissipation

Applications

• High frequency inverters
• Free wheeling diodes
• Pulse width modulation (PWM) DC to DC converters

Procurement Notes

Verify the manufacturer marking matches onsemi specifications. Confirm the package type is TO-218AC. Check for lead-free compliance indicators such as JESD-609 code e3. Ensure the part number suffix PTG corresponds to the standard tube packaging format.

Selection Notes

Select this component when designing circuits requiring fast reverse recovery times to minimize switching losses. The 400 V rating suits medium voltage power supplies. The TO-218AC package allows for direct heatsinking via the cathode terminal. Verify thermal management requirements align with the 15 A continuous current capability.

Part Context

This part belongs to the MUR series of ultrafast recovery rectifiers from onsemi. It is functionally similar to other MUR series devices but distinguished by its specific 400 V voltage rating and 15 A current capacity. The TO-218AC package is standard for through-hole mounting in power electronics.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.