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IRKT26/12A
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Product Detailed Parameters
- Description：SCR DBL HISCR 1200V 27A ADDAPAK
- 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：1.2 kV
- 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 IRKT26/12A is a thyristor/diode power module from the IRK.26 series, manufactured by Vishay General Semiconductor - Diodes Division. It features a TO-240AA compatible ADD-A-pak GEN V package with an isolated copper baseplate. The device provides a maximum repetitive reverse voltage of 1200V and supports a maximum average on-state current of 27A per junction at 85°C case temperature. Continuous RMS current capability reaches 60A when configured as an AC switch. Surge ratings include 400A for one cycle at 50Hz and 420A at 60Hz.
Feature Summary
- Utilizes Direct Bonded Copper substrate combined with a solid copper baseplate for superior thermal performance and mechanical ruggedness.
- Features high voltage industrial standard packaging with 3500V RMS isolating voltage between circuit terminals and the base.
- Includes auxiliary cathode terminals to simplify wiring and assembly processes.
- Constructed 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 and battery chargers
Procurement Notes
Verify that the ordering suffix 'A' corresponds to Generation V modules as specified in the datasheet. Confirm the voltage code '12' indicates a 1200V rating. Ensure the application requires the specific thyristor/diode configuration provided by this part number. Check isolation voltage requirements against the 3500V RMS specification.
Selection Notes
Select this component for general purpose high voltage applications requiring robust thermal management. The thick copper baseplate allows easier mounting on heatsinks with increased tolerance for surface roughness. Consider the 27A average current limit per junction and the 60A RMS capacity for AC switching duties when designing the thermal solution.
Part Context
This module belongs to the IRK.26 series of ADD-A-pak GEN V power modules. The series includes various configurations such as thyristor/thyristor and thyristor/diode combinations. The generation V design improves upon previous versions by incorporating a solid copper baseplate for better heat spread and mechanical stability.
Replacement Considerations
IRKL26/12A
FAQ
What is the maximum repetitive off-state voltage for the IRKT26/12A?
The maximum repetitive off-state voltage (VDRM) is 1200V.
Does the IRKT26/12A have an auxiliary cathode?
Yes, the IRKT26/12A includes auxiliary cathode terminals for wiring convenience.
What is the maximum non-repetitive surge current rating?
The maximum peak non-repetitive on-state current is 400A for a 10ms pulse at 50Hz and 420A for an 8.3ms pulse at 60Hz.
