MBR3045CT

Diode Arrays Overview

The MBR3045CT is a Schottky Barrier Rectifier manufactured by Good-Ark Semiconductor, featuring a dual common cathode configuration. It supports a maximum repetitive peak reverse voltage of 45 V and a maximum average forward rectified current of 30 A at a case temperature of 105°C. The device exhibits a maximum instantaneous forward voltage of 0.71 V at 15 A and 25°C, with a peak forward surge current capability of 200 A. Operating junction temperatures range from -55°C to +150°C. The component utilizes a TO-220-AB package.

Diode Arrays Feature Summary

• Dual rectifier construction designed for positive center tap applications
• Low forward voltage drop ensuring high efficiency operation
• Guardring structure provides enhanced overvoltage protection

Diode Arrays Applications

• Positive center tap rectification circuits
• Free wheeling diode implementations
• General purpose power conversion systems

Diode Arrays Procurement Notes

Verify the specific package variant against design requirements, as the datasheet distinguishes between standard TO-220-AB and isolated ITO-220-AB configurations. Confirm thermal resistance values correspond to the selected housing type before finalizing assembly processes. Ensure soldering parameters adhere to the specified maximum lead temperature limits to maintain device integrity during installation.

Diode Arrays Selection Notes

Select this component for applications requiring low forward voltage characteristics and high surge current handling capabilities. The dual common cathode arrangement simplifies circuit topology for center-tapped transformer designs. Evaluate thermal management strategies based on the junction-to-case thermal resistance specifications provided for the specific package version in use.

Diode Arrays Part Context

This component belongs to the Schottky Barrier Rectifier category, characterized by fast switching speeds and low power loss compared to standard silicon rectifiers. The dual internal diodes share a common cathode terminal, facilitating efficient power rectification in compact form factors suitable for through-hole mounting on printed circuit boards.

Diode Arrays Replacement Considerations

Cross-reference electrical ratings such as 45V reverse voltage and 30A forward current when identifying substitutes. Verify package compatibility and pinout alignment to ensure direct integration without modifying existing board layouts or thermal interfaces.

Diode Arrays FAQ

What is the isolation voltage specification for the MBR3045CT?

The datasheet specifies an isolation voltage of 1500 VAC from terminal to heatsink, but this rating applies exclusively to the ITO-220-AB package variant.

How does the forward voltage change with temperature?

The maximum instantaneous forward voltage decreases as temperature increases, dropping from 0.71 V at 25°C to 0.64 V at 125°C when conducting 15 A.

What is the thermal resistance from junction to ambient?

The typical thermal resistance from junction to ambient is 62.5 °C/W per leg for both the TO-220-AB and ITO-220-AB packages.