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Product Detailed Parameters
- Description:SCR DBL 2SCR 800V 55A ADD-A-PAK
- Series:-
- Mfr:Vishay General Semiconductor - Diodes Division
- Package:Bulk
- Structure:Series Connection - All SCRs
- Number of SCRs, Diodes:2 SCRs
- Voltage - Off State:800 V
- Current - On State (It (AV)) (Max):60 A
- Current - On State (It (RMS)) (Max):135 A
- Current - Non Rep. Surge 50, 60Hz (Itsm):1310A, 1370A
- Operating Temperature:-40°C ~ 125°C (TJ)
- Mounting Type:Chassis Mount
- Package / Case:ADD-A-PAK (3 + 4)
- Voltage - Gate Trigger (Vgt) (Max):2.5 V
- Current - Gate Trigger (Igt) (Max):150 mA
- Current - Hold (Ih) (Max):200 mA
- Grade:-
- Qualification:-
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Overview
The Vishay IRKT57/08A is a thyristor/diode module from the ADD-A-PAK GEN V series. It features a single SCR and one diode in a TO-240AA package. The device supports voltage ratings up to 1600V, with the '08' suffix indicating an 800V rating. It provides a maximum average on-state current of 60A at 85°C case temperature and a continuous RMS current of 135A as an AC switch. Non-repetitive surge currents reach 1310A at 50Hz and 1370A at 60Hz. Operating junction temperatures range from -40°C to 125°C.
Feature Summary
- Utilizes Direct Bonded Copper substrate for superior thermal performance
- Features a solid copper baseplate for mechanical ruggedness and easier heatsink mounting
- Manufactured without hard mold to eliminate direct stress on leads
- Includes click-stop feature to secure electrical terminals against axial pull-out
Applications
- High voltage regulated power supplies
- Lighting circuits
- Temperature control circuits
- Motor speed control circuits
- UPS systems and battery chargers
Procurement Notes
Verify the specific voltage code suffix (e.g., 08 for 800V) and dv/dt rating (S90 for 1000V/µs) during procurement. Confirm that the ordering suffix accurately reflects the required circuit configuration and current rating. Ensure compatibility with standard TO-240AA mounting hardware. Check datasheet specifications for thermal resistance values relevant to your specific heatsink setup.
Selection Notes
Select based on required blocking voltage and average on-state current capabilities. Consider the thermal resistance characteristics when designing the cooling system. Verify gate triggering requirements against available drive circuitry. Evaluate non-repetitive surge current ratings to ensure protection against transient overloads. Assess the need for high dv/dt immunity if operating in noisy environments.
Part Context
This component belongs to the IRK.41/.56 series of ADD-A-PAK GEN V modules. These are industrial-grade silicon controlled rectifiers designed for general purpose high voltage applications. The series offers various voltage codes ranging from 400V to 1600V and different current ratings. The Generation V design improves upon previous iterations by incorporating a solid copper baseplate.
Replacement Considerations
IRKT41/08A serves as a lower current alternative within the same series.
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