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IRKH26/08A
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Product Detailed Parameters
- Description：SCR DBL LOSCR 800V 27A ADD-A-PAK
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Bulk
- Structure：Series Connection - SCR/Diode
- Number of SCRs, Diodes：1 SCR, 1 Diode
- Voltage - Off State：800 V
- Current - On State (It (AV)) (Max)：27 A
- Current - On State (It (RMS)) (Max)：60 A
- Current - Non Rep. Surge 50, 60Hz (Itsm)：400A, 420A
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Chassis Mount
- Package / Case：ADD-A-PAK (3 + 2)
- 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 IRKH26/08A is a dual Line-of-Sight Silicon Controlled Rectifier (SCR) module manufactured by Vishay General Semiconductor. It features an ADD-A-PAK package designed for high-voltage applications. The device supports an average on-state current of 27A and an RMS current of 60A, with a non-repetitive surge current capability of 400A at 50Hz and 420A at 60Hz. It operates with a blocking voltage rating of 800V.
Feature Summary
- Dual Line-of-Sight SCR configuration for enhanced gate sensitivity and switching performance
- High thermal conductivity ADD-A-PAK package design
- Robust surge current handling capabilities for demanding power environments
Applications
- High voltage regulated power supplies
- Lighting circuits
- General purpose high voltage industrial applications
Procurement Notes
Verify the specific suffix and package variant when ordering to ensure compatibility with existing board layouts. Confirm that the dual Line-of-Sight gate structure meets the control circuit requirements. Check for RoHS compliance status if environmental regulations apply to the final assembly. Ensure thermal management solutions are adequate for the specified RMS current ratings during operation.
Selection Notes
Select this component for applications requiring high voltage isolation and reliable switching in power conversion systems. The dual SCR architecture provides flexibility for bridge or phase-control configurations. Consider the 800V blocking voltage as the primary constraint for system design. Evaluate the thermal dissipation requirements based on the 27A average current rating and ambient conditions.
Part Context
This part belongs to Vishay's high-power thyristor module family, specifically utilizing the ADD-A-PAK form factor. It is engineered for robustness in industrial power electronics. The dual configuration allows for efficient use in full-wave rectification or AC control topologies where high voltage and current density are required.
Replacement Considerations
Cross-reference with VS-VSKH26/08 for equivalent electrical specifications. Verify pinout compatibility and thermal interface dimensions before substitution. Ensure the replacement maintains the same Line-of-Sight gate technology and voltage ratings.
