MBR40H45CT-E3/45

Diode Arrays Overview

The MBR40H45CT-E3/45 is a dual common cathode Schottky rectifier manufactured by Vishay General Semiconductor. It utilizes high barrier technology to deliver an average forward current of 40 A and a maximum repetitive peak reverse voltage of 45 V. The device features a low forward voltage drop, with a maximum value of 0.69 V at 20 A and 25 °C, or 0.83 V at 40 A and 25 °C. It supports a peak forward surge current of 400 A per diode and operates within a junction temperature range of -65 °C to +175 °C. The component is housed in a TO-247AD 3L package.

Diode Arrays Feature Summary

• High barrier technology for improved high temperature performance
• Guardring structure provides overvoltage protection
• Low forward voltage drop for high efficiency and lower power losses
• High forward surge capability suitable for transient loads

Diode Arrays Applications

• Low voltage, high frequency rectification in switching mode power supplies
• Free-wheeling diodes in DC/DC converters
• Polarity protection circuits

Diode Arrays Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm compliance details such as halogen-free status and RoHS alignment. Confirm that the requested part number matches the exact voltage rating and package type required for the design. Ensure thermal management strategies account for the specified thermal resistance values provided in the datasheet.

Diode Arrays Selection Notes

Select this component based on the requirement for a 45 V blocking voltage and 40 A continuous current handling in a through-hole configuration. Consider the thermal characteristics and the TO-247AD 3L package dimensions for PCB layout and heatsinking requirements. Evaluate the forward voltage drop specifications at expected operating temperatures to ensure system efficiency targets are met.

Diode Arrays Part Context

This component belongs to the MBR40HxxPT series of dual common cathode Schottky rectifiers from Vishay. The series includes variants with different voltage ratings, specifically 35 V, 45 V, 50 V, and 60 V. All variants share the same physical package, pinout, and general electrical characteristics, differing primarily in their maximum repetitive peak reverse voltage capabilities.

Diode Arrays Replacement Considerations

Direct substitutes within the same Vishay family include MBR40H35PT, MBR40H50PT, and MBR40H60PT. These parts share identical packaging and current ratings but offer different reverse voltage thresholds. Verify that the alternative voltage rating meets or exceeds the circuit requirements.