DURB1640CT

Diode Arrays Overview

The Littelfuse DURB1640CT is an ultrafast recovery rectifier featuring a common cathode configuration in a surface mount TO-263 (D2PAK) package. It provides a peak inverse voltage of 400V and an average forward current of 8A per leg, totaling 16A for the device. The component exhibits a reverse recovery time of 45ns and supports a peak one-cycle non-repetitive surge current of 80A per leg. Operating junction temperatures range from -55°C to +150°C with a thermal resistance of 5.0°C/W.

Diode Arrays Feature Summary

• Ultrafast switching capability with low reverse leakage current
• Common cathode configuration in a surface mount TO-263 package
• High surge current capability and low forward voltage drop
• Lead-free E3 terminal finish compliant with IPC/JEDEC standards

Diode Arrays Applications

• Output rectifiers in switch mode power supplies and DC to DC converters
• Free-wheeling or boost diodes in converters and motor control circuits
• Anti-parallel diodes for high frequency switching devices such as IGBTs
• Uninterruptible Power Supplies (UPS)
• Inductive heating, melting, ultrasonic cleaners, and welders

Diode Arrays Procurement Notes

Verify the specific ordering suffix against the manufacturer's official datasheet to confirm packaging options and terminal finish specifications. Ensure that the procurement documentation explicitly references the Pb-free E3 designation to guarantee compliance with lead-free interconnect requirements. Confirm the exact packing mode matches the intended manufacturing process needs.

Diode Arrays Selection Notes

Select this component for high-frequency power switching applications requiring low reverse recovery time and high-temperature stability. The common cathode arrangement simplifies circuit design for dual-leg configurations. Evaluate the thermal management requirements based on the specified junction-to-case thermal resistance to ensure reliable operation within the maximum temperature limits.

Diode Arrays Part Context

This device belongs to the Littelfuse DUR series of ultrafast recovery rectifiers, designed for commercial applications demanding low Trr, low leakage, and low forward voltage drop. The series is suitable for output rectification and freewheeling duties in high-frequency environments like SMPS and DC-DC converters.

Diode Arrays Replacement Considerations

Consult official Littelfuse documentation for verified substitute part numbers. Do not assume cross-compatibility with other manufacturers' ultrafast rectifiers without verifying electrical parameters and package dimensions.

Diode Arrays FAQ

What is the reverse recovery time of the DURB1640CT?

The reverse recovery time is 45ns when tested at IF=500mA, IR=1A, and Irm=250mA.

What is the maximum operating junction temperature?

The maximum operating junction temperature is +150°C.

Does the DURB1640CT support lead-free soldering processes?

Yes, the Pb-free E3 designation indicates that the second-level interconnect is lead-free and the terminal finish material is tin.