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IRKT27/08A
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Product Detailed Parameters
- Description：SCR DBL HISCR 800V 25A ADDAPAK
- 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 IRKT27/08A is a thyristor/thyristor module from the Vishay IRK.26 series, housed in an ADD-A-pak GEN V package compatible with TO-240AA standards. It features two elements configured for series connection with a center tap. The device supports a maximum repetitive off-state voltage of 800V and a continuous RMS on-state current of 60A when used as an AC switch. It includes an isolated copper baseplate for thermal management and offers high surge capability with a non-repetitive peak current of 400A at 50Hz.
Feature Summary
- Features a thick copper baseplate and Direct Bonded Copper substrate for superior thermal performance and mechanical ruggedness.
- Provides UL E78996 approval with 3500V RMS isolating voltage between terminals and the base.
- Utilizes double stick bonding and thick aluminum metal dies to enhance reliability under high stress conditions.
- Includes a click-stop feature to secure electrical terminals against axial pull-out forces.
Applications
- High voltage regulated power supplies
- Lighting circuits
- Temperature control circuits
- Motor speed control circuits
- UPS and battery charger systems
Procurement Notes
Verify the specific ordering code suffix to confirm dv/dt ratings and auxiliary terminal configurations. Confirm compliance requirements such as lead-free status if applicable to the manufacturing batch. Ensure mounting hardware specifications match the required torque values for reliable thermal interface performance.
Selection Notes
Select this component for general purpose high voltage applications requiring robust isolation and thermal dissipation. Evaluate the 800V blocking voltage against circuit peaks and ensure the 60A RMS rating accommodates continuous load requirements. Consider the series-connected configuration for bridge or phase control topologies needing center-tapped arrangements.
Part Context
This module belongs to the IRK.26 series of ADD-A-pak GEN V power modules manufactured by Vishay General Semiconductor - Diodes Division. The series encompasses various voltage codes ranging from 400V to 1600V, utilizing a standardized industrial package design that facilitates easy heatsink mounting and provides high surge current capabilities for demanding industrial environments.
Replacement Considerations
IRKT27/08AS90
FAQ
What is the internal circuit configuration of the IRKT27/08A?
The module contains two elements configured as a series-connected thyristor pair with a center tap.
What is the maximum isolating voltage provided by the module?
The module offers 3500V RMS isolating voltage between the electrical terminals and the base plate.
How does the package design improve thermal spreading?
The solid copper baseplate allows for easier mounting on heatsinks with increased tolerance to surface roughness, improving thermal spread compared to standard packages.
