ND411826

Overview

The ND411826 is a POW-R-BLOK Dual Diode Isolated Module manufactured by Powerex Inc. It features an isolated design suitable for rectification applications requiring easy mounting on common heatsinks. The module incorporates an aluminum nitride isolator and compression bonded elements with a metal baseplate to ensure low thermal impedance. This construction supports high current capability and electrical isolation, facilitating integration into complex power systems.

Feature Summary

• Electrically isolated heatsinking for simplified assembly
• Aluminum nitride isolator providing robust dielectric strength
• Compression bonded elements ensuring reliable mechanical stability
• Metal baseplate design optimized for efficient heat dissipation

Applications

• Bridge circuits requiring isolated rectification
• AC and DC motor drive systems
• Battery supply configurations
• General purpose power supplies
• Large IGBT circuit front ends

Procurement Notes

Verify the specific voltage rating suffix associated with the ND411826 part number against official Powerex documentation before procurement. Confirm that the required reverse voltage matches the component's specification. Ensure compatibility with the intended thermal management solution due to the isolated package design. Cross-reference the datasheet for exact pinout and mounting dimensions to prevent installation errors in the final assembly.

Selection Notes

Select this module when application requirements demand high current rectification with galvanic isolation between the circuit and the heatsink. The dual diode configuration is appropriate for center-tap or bridge topologies. Consider the thermal impedance characteristics for system cooling design. Verify that the operating temperature range aligns with the environmental conditions of the target equipment.

Part Context

This component belongs to the POW-R-BLOK family of discrete power modules from Powerex Inc. The series is characterized by its rugged construction and UL recognition for safety compliance. These modules are engineered for industrial power conversion environments where reliability and thermal performance are critical. The family includes various voltage and current ratings to accommodate diverse rectification needs.

Replacement Considerations

Consult official Powerex substitution guides for verified equivalents. Generic replacements may not match the specific isolation thickness or thermal interface requirements. Ensure any substitute maintains the same dual diode configuration and flange mount form factor.