ND411426

Overview

The ND411426 is a POW-R-BLOK Dual Diode Isolated Module manufactured by Powerex Inc. It features an electrically isolated heatsink design with an aluminum nitride isolator and compression bonded elements on a metal baseplate for low thermal impedance. The module contains two silicon rectifier diode elements configured in a series connected, center tap arrangement. It is UL recognized and designed for applications requiring rectification and isolated packaging.

Feature Summary

• Electrically isolated heatsinking capability
• Aluminum nitride electrical isolator
• Compression bonded internal elements
• Metal baseplate construction

Applications

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

Procurement Notes

Verify the specific voltage rating suffix associated with the ND411426 part number against official Powerex documentation to ensure correct blocking voltage selection. Confirm compliance requirements such as RoHS status and lead-free specifications directly from the manufacturer datasheet before procurement.

Selection Notes

Select this component for high-power rectification tasks requiring galvanic isolation between the circuit and the mounting structure. The dual diode configuration supports center-tapped topologies. Ensure the application environment accommodates the module's thermal management needs via the metal baseplate.

Part Context

This component belongs to the POW-R-BLOK family of dual diode isolated modules produced by Powerex Inc. These modules are engineered for robust performance in industrial power conversion systems. The series utilizes compression bonding technology to enhance current handling and thermal reliability compared to wire-bonded alternatives.

Replacement Considerations

Consult official Powerex substitution guides for verified equivalents. Cross-reference pinout compatibility and thermal resistance values when considering alternative manufacturers.