SBR4045CT

Diode Arrays Overview

The SBR4045CT is a dual common cathode Super Barrier Rectifier manufactured by Diodes Incorporated. It features a 45 V peak repetitive reverse voltage rating and an average rectified output current of 20 A per leg, totaling 40 A for the device. The component utilizes patented Super Barrier technology to achieve a low forward voltage drop of 0.47 V at 20 A and 25°C. It operates within a temperature range of -65°C to +150°C and is housed in a TO-220AB through-hole package.

Diode Arrays Feature Summary

• Patented Super Barrier Rectifier technology combining Schottky speed with silicon ruggedness
• Low forward voltage drop for high efficiency and reduced power loss
• Excellent high-temperature stability across a wide operating range
• Soft, fast switching capability to minimize electromagnetic interference

Diode Arrays Applications

• Switchmode power supplies
• High frequency DC to DC converters
• Free wheeling applications
• Polarity protection circuits

Diode Arrays Procurement Notes

Verify the specific ordering suffix against the manufacturer's documentation to confirm the exact case style and packaging configuration. Confirm RoHS compliance status and environmental declarations such as halogen-free requirements prior to procurement. Ensure thermal management solutions align with the specified junction-to-case thermal resistance values for the intended application environment.

Diode Arrays Selection Notes

Select this component when low conduction losses and high efficiency are required in low-voltage, high-frequency environments. The dual common cathode configuration supports center-tapped transformer topologies. Evaluate the thermal resistance characteristics relative to the expected ambient temperatures and derating curves to ensure reliable operation under continuous load conditions.

Diode Arrays Part Context

This part belongs to the SBR40 series of Super Barrier Rectifiers from Diodes Incorporated. It represents a specialized class of silicon rectifiers designed to outperform standard Schottky diodes in terms of leakage current stability at elevated temperatures while maintaining low forward voltage characteristics suitable for modern power conversion systems.

Diode Arrays Replacement Considerations

SBR4045CTFP (ITO-220AB package variant)

Diode Arrays FAQ

What is the maximum non-repetitive peak forward surge current?

The maximum non-repetitive peak forward surge current is 280 A for an 8.3 ms single half sine-wave superimposed on rated load.

How does the forward voltage drop change with temperature?

The typical forward voltage drop increases from 0.47 V at 25°C to 0.50 V at 125°C when tested at a forward current of 20 A.

Is there an isolation voltage specification for this component?

No isolation voltage is specified for the TO-220AB package; however, the ITO-220AB variant specifies an isolation voltage of 2000 VAC from terminal to heatsink.