ND410635

Overview

The ND410635 is a dual diode isolated POW-R-BLOK module manufactured by Powerex. It features two series-connected silicon rectifier elements with an average forward current rating of 350 Amperes and a repetitive peak reverse blocking voltage of 600 Volts. The device utilizes an electrically isolated heatsink design with an aluminum nitride isolator, allowing direct mounting on common heat sinks without additional insulation components. Key electrical characteristics include a maximum non-repetitive surge current of 12,500 Amperes at initial junction temperatures equal to Tj max, and a thermal resistance from junction to case of 0.14 °C/W per junction.

Feature Summary

• Electrically isolated heatsinking capability for simplified installation
• Aluminum nitride isolator construction for enhanced thermal performance
• Compression bonded elements integrated into a metal baseplate

Applications

• Bridge circuits
• AC & DC motor drives
• Battery supplies
• Power supplies
• Large IGBT circuit front ends

Procurement Notes

Verify the specific voltage suffix in the part number against the required application voltage. Confirm that the 600V rating aligns with system requirements. Ensure mounting torque specifications are strictly followed during assembly to maintain isolation integrity and thermal contact. Check for UL recognition status if safety compliance is mandatory for the end equipment.

Selection Notes

Select this module when high current rectification and electrical isolation are required in a compact form factor. The low thermal impedance supports improved current capability compared to standard packages. Consider the operating temperature range of -40 to +150 °C for environmental suitability. Evaluate the surge current ratings against potential fault conditions in the circuit design.

Part Context

This component belongs to the ND41__35 family of dual diode isolated modules rated up to 350 Amperes and 1700 Volts. The series is designed for applications requiring rectification and isolated packaging. Modules in this line are tested and recognized by Underwriters Laboratories (UL). The ND410635 specifically denotes the 600 Volt variant within this product line.

Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. Verify compatibility based on pinout, voltage, current, and thermal parameters before replacing existing units.