VUB72-12NO1

Bridge Rectifier Overview

The IXYS VUB72-12NO1 is a three-phase rectifier bridge with an integrated brake chopper, designed for high-power industrial applications. It features a standard IGBT with low saturation voltage and a HiPerFRED free-wheeling diode within a single module package. The input rectifier section provides a maximum average forward current of 110 A at 80°C case temperature and supports a peak repetitive reverse voltage of 1200 V. The integrated chopper transistor handles up to 35 A DC at 80°C case temperature, while the chopper diode delivers 15 A DC at 80°C. The device utilizes a screw-mount configuration with solder terminals for PCB mounting on an isolated DCB ceramic base plate.

Bridge Rectifier Feature Summary

• Integrates a three-phase mains rectifier bridge with a dedicated brake chopper circuit containing an IGBT and a HiPerFRED free-wheeling diode.
• Features an isolated DCB ceramic base plate providing large creepage and strike distances for enhanced electrical safety and reliability.
• Includes a built-in NTC temperature sensor for precise thermal monitoring and protection during operation.
• Utilizes screw-mount installation style with standardized terminal layout for secure mechanical attachment and efficient heat dissipation.

Bridge Rectifier Applications

• Mains input rectification in variable frequency drives
• DC link conditioning for inverter systems
• Brake chopper circuits for motor and generator/brake operation

Bridge Rectifier Procurement Notes

Verify component authenticity through official IXYS channels or authorized distributors. Confirm RoHS compliance status and check for any Product Change Notifications (PCN) that may affect specifications. Ensure proper handling procedures are followed due to the sensitive semiconductor nature of the module. Validate datasheet revisions against the specific batch received to guarantee parameter accuracy.

Bridge Rectifier Selection Notes

Select this module when a combined three-phase rectifier and brake chopper solution is required for drive systems. Ensure the thermal management design can handle the specified power dissipation at the target case temperature. Verify that the 1200 V rating aligns with the system's peak line-to-line voltage requirements. Consider the 110 A bridge current capacity versus the 35 A chopper current limit based on the specific braking duty cycle.

Bridge Rectifier Part Context

This component belongs to the VUB72 series from IXYS, which focuses on integrated power modules for industrial drives. The series combines rectification and braking functions to reduce board space and simplify assembly. The VUB72-12NO1 specifically denotes the 1200 V variant, distinguishing it from higher voltage versions like the VUB72-16NO1 within the same family architecture.

Bridge Rectifier Replacement Considerations

Public confirmed substitute part numbers: VUB72-16NO1.