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MCC44-18IO1B
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Product Detailed Parameters
- Description：MOD THYRISTOR DUAL 1800V TO240AA
- Series：-
- Mfr：IXYS
- Package：Box
- Structure：Series Connection - All SCRs
- Number of SCRs, Diodes：2 SCRs
- Voltage - Off State：1.8 kV
- Current - On State (It (AV)) (Max)：51 A
- Current - On State (It (RMS)) (Max)：80 A
- Current - Non Rep. Surge 50, 60Hz (Itsm)：1150A, 1230A
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：TO-240AA
- Voltage - Gate Trigger (Vgt) (Max)：1.5 V
- Current - Gate Trigger (Igt) (Max)：100 mA
- Current - Hold (Ih) (Max)：200 mA
- Grade：-
- Qualification：-
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Overview
The MCC44-18IO1B is a silicon SCR module manufactured by IXYS, designed for high-power applications. It features a maximum repetitive peak off-state voltage of 1800V and an on-state current rating of 80A. The device incorporates a low thermal resistance design with an on-state resistance of 5.3mΩ. Packaged in the Y2-DCB format with screw mounting, it supports operating temperatures from -40°C to +125°C. This component integrates robust gate control characteristics suitable for industrial power conversion systems requiring reliable thyristor switching.
Feature Summary
- High-voltage blocking capability up to 1800V
- Low on-state resistance for efficient conduction
- Robust mechanical screw-mount packaging
Applications
- Industrial motor drives
- Power supply rectification
- Welding equipment inverters
Procurement Notes
Verify the specific manufacturing date code against the latest product change notifications issued by IXYS. Confirm that the package terminal dimensions match the intended PCB or busbar layout. Ensure storage conditions remain within specified humidity limits to prevent terminal oxidation before soldering or assembly.
Selection Notes
Select this module when an 80A continuous current capacity at 1800V is required. Evaluate the thermal management system to ensure the junction temperature remains below 125°C under full load. Compare the 5.3mΩ on-state resistance against alternative modules to optimize conduction losses in the specific circuit topology.
Part Context
This part belongs to the MCC series of IXYS thyristor modules, which are standardized for industrial power electronics. The series offers various current ratings while maintaining consistent mechanical footprints. The MCC44 variant specifically targets medium-to-high power applications where compact size and high reliability are critical design constraints.
Replacement Considerations
Direct cross-replacement requires matching the 1800V/80A specifications and Y2-DCB package. Verify pinout compatibility and thermal interface requirements. Consult IXYS documentation for any updated equivalent parts within the MCC family that may offer improved thermal performance or revised mechanical tolerances.
