ND411626

Overview

The Powerex ND411626 is a POW-R-BLOK dual diode isolated module designed for high-power rectification applications. It features an electrically isolated heatsink construction, allowing multiple modules to be mounted on a common heatsink without electrical shorting. The device utilizes compression-bonded silicon elements and an aluminum nitride isolator to achieve low thermal impedance. This series supports voltage ratings up to 2400 Volts and current capacities of 260 Amperes.

Feature Summary

• Electrically isolated heatsinking for simplified multi-module mounting
• Aluminum nitride isolator providing robust dielectric strength
• Compression bonded elements ensuring mechanical stability and thermal performance
• Metal baseplate design for efficient heat dissipation

Applications

• Industrial rectification systems requiring isolated packaging
• High-voltage power conversion equipment
• Applications necessitating easy mounting on common heatsinks

Procurement Notes

Verify the specific voltage rating suffix (e.g., ND411626 vs ND4126) against official datasheets, as the series spans 600V to 2400V. Confirm package dimensions and terminal configurations match the outline drawing in the manufacturer's documentation. Ensure compliance with UL recognition requirements if applicable to the end-use environment.

Selection Notes

Select this module when high current rectification and electrical isolation are required. The isolated design simplifies thermal management by allowing direct mounting to grounded heatsinks. Consider the maximum repetitive peak reverse voltage and average forward current limits relative to the specific circuit topology and cooling conditions.

Part Context

This component belongs to the POW-R-BLOK family of dual diode modules from Powerex. These modules are engineered for rugged industrial environments, offering high reliability through compression bonding technology. The series provides various voltage options within the same physical footprint to standardize designs across different power levels.

Replacement Considerations

Direct replacements must match the 260A current rating, isolated heatsink configuration, and compatible voltage class. Verify that substitute modules maintain similar thermal impedance characteristics and pinout compatibility to ensure seamless integration into existing assemblies.