Manufacturer Part Number
MCC44-18IO8B
Manufacturer
Littelfuse
Introduction
Silicon Controlled Rectifier Module
Product Features and Performance
Series Connection of SCRs
High Surge Capability
Optimized for phase control applications
Compact package design
Product Advantages
Robust thermal cycling endurance
High blocking voltage
Low gate trigger current
Efficient heat dissipation
Key Technical Parameters
Voltage - Off State: 1.8 kV
Current - On State (It(AV)) (Max): 51 A
Current - On State (It(RMS)) (Max): 80 A
Voltage - Gate Trigger (Vgt) (Max): 1.5 V
Current - Gate Trigger (Igt) (Max): 100 mA
Current - Non Rep. Surge 50, 60Hz (Itsm): 1150A, 1230A
Current - Hold (Ih) (Max): 200 mA
Quality and Safety Features
High reliability structure
Over-voltage and over-current protection
Suitable for high-temperature operation up to 125°C
Compatibility
Chassis mountable
Fits into TO-240AA package applications
Application Areas
Industrial power applications
Motor control
Lighting and heating control
Power supplies
Product Lifecycle
Active status
Not reported as nearing discontinuation
Potential availability of replacements or upgrades in Littelfuse portfolio
Several Key Reasons to Choose This Product
Outstanding high-voltage performance suitable for industrial environments
Enhanced surge current capabilities for demanding applications
Low gate trigger requirements leading to simplified control circuitry
Capable of handling high RMS current for robust performance
Long operational life with consistent performance under thermal cycling
Broad operating temperature range ensuring reliability in variable environments
Industry-standard packaging facilitating ease of integration
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