MCD26-16IO1B

Overview

The IXYS MCD26-16IO1B is a single-phase thyristor module with an integrated diode, housed in a TO-240AA package. It features a rated average on-state current of 26 A and a repetitive peak reverse voltage of 1600 V. The device supports a non-repetitive surge current of 350 A and has a maximum junction temperature of 125°C. Key electrical parameters include a gate trigger current of 100 mA, a gate trigger voltage of 1.6 V, and a holding current of 200 mA. The module utilizes direct copper bonded Al2O3 ceramic base plates for thermal management.

Feature Summary

• Integrated single thyristor and diode configuration within a compact TO-240AA footprint
• Direct copper bonded Al2O3 ceramic base plate for efficient heat dissipation
• Planar passivated chips ensuring stable performance under high power cycling
• Electrical isolation voltage of 3600 V between terminals and base

Applications

• DC motor control systems
• Soft-start AC motor controllers
• Light, heat, and temperature regulation circuits

Procurement Notes

Verify the specific suffix IO1B to confirm the presence of twin gate-cathode pins and the integrated diode configuration. Ensure the procurement source provides original manufacturer documentation to validate the UL registration status and RoHS compliance. Cross-reference the part number against Littelfuse listings if applicable, as IXYS power semiconductor assets have been acquired.

Selection Notes

Select this component for applications requiring combined rectification and phase control in a single package. The 26 A rating suits moderate power industrial loads. Verify that the system's thermal design can maintain the junction temperature below 125°C given the 1.5 V peak forward voltage drop. Confirm that the 100 mA gate drive capability matches the controller's output specifications.

Part Context

This module belongs to the MCC/MCD series of IXYS thyristor modules, designed for general-purpose industrial power conversion. The MCD designation indicates a combination of a thyristor and a diode, distinguishing it from pure thyristor variants like the MCC series. These components are standard replacements in legacy industrial drives and power supplies.

Replacement Considerations

Equivalent parts include the MCC26-16IO1B if the integrated diode function is not required. For identical functionality, verify cross-compatibility with other manufacturers' TO-240AA single SCR+Diode modules rated at 1600V/26A. Always check pinout compatibility, specifically the twin gate-cathode arrangement.