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IRKT105/12A
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Product Detailed Parameters
- Description：SCR DBL HISCR 1200V 105A 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)：105 A
- Current - On State (It (RMS)) (Max)：235 A
- Current - Non Rep. Surge 50, 60Hz (Itsm)：1785A, 1870A
- Operating Temperature：-40°C ~ 130°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 IRKT105/12A is a thyristor/diode module from the IRK.105 series, rated for 1200V repetitive peak off-state voltage and 105A average on-state current at 85°C case temperature. It features a TO-240AA (ADD-A-pak) package with an isolated baseplate. Key electrical parameters include a maximum RMS on-state current of 235A as an AC switch, a surge current capability of 1785A at 50Hz, and a junction temperature range of -40°C to 130°C. The device incorporates a thick copper baseplate and Al2O3 DBC insulator for thermal management.
Feature Summary
- Features a thick copper baseplate and Direct Bonded Copper substrate for enhanced thermal performance and mechanical ruggedness.
- Includes a click-stop feature to secure electrical terminals against axial pull-out.
- Provides 3500V RMS isolating voltage between circuits and the baseplate.
- 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 voltage code suffix matches the required blocking voltage, as the IRK.105 series spans 400V to 1600V. Confirm the generation V designation and dv/dt rating requirements. Ensure mounting hardware complies with the specified torque values and thermal interface material recommendations for optimal heat dissipation.
Selection Notes
Select based on the required repetitive peak off-state voltage and average on-state current ratings relative to the application's thermal conditions. Consider the conduction angle and duty cycle when derating the current capacity. Verify isolation voltage requirements and ensure the heatsink mounting surface meets the flatness and smoothness specifications for effective thermal transfer.
Part Context
This component belongs to the IRK.105 series of ADD-A-pak Gen V power modules. These modules are designed for general-purpose high-voltage industrial applications. The series offers various voltage codes and circuit configurations, including thyristor/diode and thyristor/thyristor arrangements, all sharing a common industrial standard package footprint compatible with TO-240AA mounts.
Replacement Considerations
IRKT105/14A
FAQ
What is the maximum continuous RMS on-state current when used as an AC switch?
The maximum continuous RMS on-state current is 235 A.
Does the module have an isolated baseplate?
Yes, the module features an isolated baseplate with a 3500V RMS isolating voltage rating.
What is the maximum non-repetitive surge current at 50Hz?
The maximum non-repetitive surge current (ITSM) at 50Hz is 1785 A.
