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IRKT26/08A
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Product Detailed Parameters
- Description：SCR DBL HISCR 800V 27A 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)：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 + 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 IRKT26/08A is a thyristor/diode module from the IRK.26 series, rated for 800V repetitive peak off-state voltage and 27A average on-state current at 85°C case temperature. It features an ADD-A-pak GEN V package with a thick copper baseplate for mechanical ruggedness and thermal spread. The device provides 3500V RMS isolation voltage and supports high surge currents of 400A at 50Hz or 420A at 60Hz.
Feature Summary
- Features a thick copper baseplate and Direct Bonded Copper substrate for superior mechanical ruggedness and thermal performance.
- Includes a solid copper baseplate to improve mounting tolerance on heatsinks and enhance thermal spreading.
- Manufactured without hard mold to eliminate direct stress on leads.
Applications
- High voltage regulated power supplies
- Lighting circuits
- Temperature control circuits
- Motor speed control circuits
- UPS systems
Procurement Notes
Verify the specific suffix 'T' indicates the thyristor/diode configuration and confirm the 'A' suffix denotes Generation V packaging. Ensure the voltage code '08' matches the required 800V rating. Check for UL E78996 approval requirements if safety certification is mandatory for the application.
Selection Notes
Select based on the 800V blocking capability and 27A continuous current rating at 85°C. Consider the 3500V RMS isolation voltage for safety requirements. Evaluate thermal resistance values against the expected heatsink conditions and conduction angles to ensure junction temperature limits are not exceeded during operation.
Part Context
This component belongs to the IRK.26 series of thyristor/diode modules manufactured by Vishay General Semiconductor - Diodes Division (formerly International Rectifier). The series utilizes the ADD-A-pak GEN V industrial standard package, designed for general-purpose high voltage applications requiring robust mechanical and electrical performance.
Replacement Considerations
IRKN26/08A
FAQ
What is the maximum isolating voltage of the IRKT26/08A?
The module has a 3500V RMS isolating voltage between the circuit terminals and the baseplate.
How does the package design affect mounting?
The solid copper baseplate allows easier mounting on most heatsinks and improves tolerance to surface roughness compared to previous generations.
What is the non-repetitive peak on-state current rating?
The maximum non-repetitive peak on-state current is 400A at 50Hz and 420A at 60Hz.
