PD412611

Overview

The PD412611 is a POW-R-BLOK Dual Diode Isolated Module manufactured by Powerex Inc. It features two silicon rectifier elements in a series-connected configuration with a center tap, housed in an electrically isolated flange-mount package. The module supports a maximum average forward output current of 600 Amperes and offers a maximum repetitive peak reverse voltage rating of up to 2400 Volts. Designed for high-power applications, it utilizes compression-bonded elements and a metal baseplate to ensure low thermal impedance and efficient heat dissipation.

Feature Summary

• Electrically isolated heatsinking capability allows direct mounting on common heatsinks without additional insulation components
• Compression bonded elements provide robust mechanical stability and reliable electrical connections
• Metal baseplate construction ensures low thermal impedance for improved current handling capabilities

Applications

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

Procurement Notes

Verify the specific voltage suffix (e.g., 2400V vs other ratings) as part numbers within the LD/ND/PD series often denote voltage classes. Confirm that the required isolation voltage matches the application's safety standards. Ensure the mounting torque specifications for the M8 or M10 threads are strictly followed to maintain the integrity of the aluminum nitride isolator and prevent die cracking during installation.

Selection Notes

Select this module when high current capacity and galvanic isolation are required in a compact form factor. The dual diode configuration with a center tap is suitable for bridge rectification or split-rail power supply designs. Consider the thermal management requirements carefully, as the performance relies heavily on the interface between the metal baseplate and the external cooling system.

Part Context

This component belongs to the POW-R-BLOK family of power modules from Powerex Inc. This series is characterized by its use of aluminum nitride isolators and compression bonding technology. Similar parts in the lineup include the LD813645 and ND4126, which share the same packaging style but differ in current ratings and voltage capabilities.

Replacement Considerations

Public confirmed substitute part numbers were not found in the provided documentation. Cross-reference with other Powerex POW-R-BLOK models such as LD4160 or LS4160 only if electrical parameters and pinout configurations are verified to be identical.