VUO18-14DT8

Bridge Rectifier Overview

The VUO18-14DT8 is a three-phase rectifier bridge from IXYS, utilizing semi-fast diodes within the VUO 18 series. It features an average forward current (IdAV) of 18 A at a case temperature of 63°C and supports a maximum repetitive peak reverse voltage (VRRM) of 1600 V. The device incorporates planar passivated chips with a low forward voltage drop of 1.85 V at 55 A. Electrical isolation is rated at 3000 V~ RMS. Key thermal parameters include a junction-to-case thermal resistance (RthJC) of 9.30 K/W per diode and a case-to-heatsink resistance (RthCH) of 1.55 K/W per module.

Bridge Rectifier Feature Summary

• Features fast-on terminals for simplified mounting
• Provides high electrical isolation for noise immunity
• Utilizes planar passivated chip technology
• Designed for reduced electromagnetic interference

Bridge Rectifier Applications

• Supplies for DC power equipment
• Input rectifiers for PWM inverters
• Battery DC power supplies
• Field supply for DC motors

Bridge Rectifier Procurement Notes

Verify the specific ordering suffix DT8 to confirm package configuration and terminal type. Ensure the selected voltage rating matches the system requirements, as the VUO18 series includes variants with different blocking voltages. Confirm compliance with relevant safety standards such as UL registration E 72873 before finalizing procurement specifications.

Bridge Rectifier Selection Notes

Select this component based on the required 1600 V blocking voltage and 18 A current capacity. Consider the thermal management requirements given the RthJC value when designing the heatsink interface. Verify that the operating temperature range fits within the specified -40°C to +150°C junction limits for the intended application environment.

Bridge Rectifier Part Context

This part belongs to the VUO 18 series of three-phase rectifier bridges manufactured by IXYS. The series offers various voltage ratings, including 1200 V, 1400 V, and 1600 V options. The VUO18-14DT8 specifically denotes the 1600 V variant within this family, designed for robust performance in industrial power conversion applications.

Bridge Rectifier Replacement Considerations

Direct substitutes may include other VUO18 series models with matching voltage ratings or equivalent three-phase bridge rectifiers from other manufacturers. Verify pinout compatibility and thermal resistance values when considering alternative components.