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Product Detailed Parameters
- Description：SCR 100V 110A TO94
- Series：-
- Mfr：Powerex Inc.
- Package：Bulk
- Voltage - Off State：100 V
- Voltage - Gate Trigger (Vgt) (Max)：3 V
- Current - Gate Trigger (Igt) (Max)：70 mA
- Current - Hold (Ih) (Max)：-
- Current - Non Rep. Surge 50, 60Hz (Itsm)：1000A @ 60Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Chassis, Stud Mount
- Package / Case：TO-209AC, TO-94-4, Stud
- Supplier Device Package：-
- Voltage - On State (Vtm) (Max)：2.3 V
- Current - On State (It (AV)) (Max)：70 A
- Current - On State (It (RMS)) (Max)：110 A
- Current - Off State (Max)：20 mA
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Overview
The Powerex Inc. 2N1793 is a silicon controlled rectifier (SCR) designed for high-current power control applications. It features a stud mount configuration within the TO-94 package, facilitating robust thermal dissipation and secure chassis installation. The device supports an average on-state current of 70 A and an RMS on-state current of 110 A, with a maximum on-state voltage drop of 2.3 V. It operates across a temperature range of -40°C to 125°C, ensuring reliability in demanding industrial environments.
Feature Summary
- High current handling capability with 70 A average and 110 A RMS ratings
- Stud mount construction for efficient heat transfer and mechanical stability
- Wide operating temperature range suitable for harsh industrial conditions
Applications
- Industrial motor control systems
- Power supply regulation circuits
- Welding equipment power stages
Procurement Notes
Verify the specific manufacturer datasheet for the 2N1793 to confirm critical parameters such as the exact on-state voltage drop and thermal resistance values. Ensure the procurement source provides authentic components from Powerex Inc. or authorized distributors to guarantee performance consistency and long-term reliability in high-power applications.
Selection Notes
Select this component when high current capacity and rugged mechanical mounting are required. The TO-94 stud mount design simplifies integration into chassis-based cooling systems. Consider the 2.3 V maximum on-state voltage for efficiency calculations and ensure the thermal management system can handle the specified current loads within the -40°C to 125°C operating range.
Part Context
The 2N1793 belongs to the family of single SCRs manufactured by Powerex Inc., specializing in discrete power semiconductor devices. This part number represents a standard recovery thyristor optimized for general-purpose power switching. It is distinct from adjustable regulators like the MAX1793 series, serving purely as a unidirectional current switch in AC/DC power conversion topologies.
Replacement Considerations
Cross-reference with other manufacturers' TO-94 stud mount SCRs having equivalent 70 A/110 A ratings and similar voltage characteristics. Verify pinout compatibility and thermal interface requirements before substitution to maintain circuit integrity.
