MDD44-12N1B

Overview

The MDD44-12N1B is a high-current diode module manufactured by IXYS Semiconductor. It features a double series silicon structure housed in a TO-240AA package with three pins. The device supports a maximum repetitive peak reverse voltage of 1200 V and an average rectified forward current of 64 A per diode. The typical forward voltage drop is specified at 1.6 V. This component is designed for robust performance in demanding power electronics applications requiring reliable high-voltage rectification.

Feature Summary

• Double series diode configuration for enhanced voltage handling
• High current capacity suitable for industrial power systems
• Standard recovery speed characteristics for general rectification
• Compliant with RoHS3 environmental standards

Applications

• Industrial motor drives and inverters
• High-power DC power supply rectification
• Welding equipment power stages
• Uninterruptible power supply (UPS) systems

Procurement Notes

Verify the specific suffix 'N1B' against official IXYS documentation to ensure correct pinout and thermal characteristics. Confirm that the TO-240AA package matches your PCB footprint requirements. Check for updated datasheet revisions regarding electrical limits before finalizing the bill of materials.

Selection Notes

Select this module when dual-series diode functionality is required within a single compact package. Ensure the thermal management solution can handle the heat dissipation associated with 64 A continuous current. Verify that the 1200 V rating exceeds the peak inverse voltage present in the target circuit topology.

Part Context

This part belongs to the MDD series of high-current diode modules from IXYS. These modules are engineered for reliability in harsh environments. The series typically utilizes advanced silicon planar technology to ensure stable operation under high thermal stress and electrical load conditions common in power conversion systems.

Replacement Considerations

Direct substitutes include the MDD44-12N1 or MDD44-08N1B, provided the current rating and voltage specifications align with the application requirements. Always verify pin compatibility and thermal resistance values before swapping components.