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Product Detailed Parameters
- Description：SCR 200V 110A TO94
- Series：-
- Mfr：Powerex Inc.
- Package：Bulk
- Voltage - Off State：200 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)：18 mA
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Overview
The Powerex Inc. 2N1795 is a silicon-controlled rectifier (SCR) designed for phase control applications. It features a TO-94 stud package and supports a repetitive peak reverse voltage of 200V with an on-state current rating of 110A. The device exhibits a maximum on-state voltage of 2.3V and operates within a junction temperature range of -40°C to 125°C. It provides high surge current capability of 1600A and maintains a dv/dt rating of 100 V/μs, ensuring reliable performance in AC power conversion and motor speed regulation environments.
Feature Summary
- High surge current handling capability of 1600A
- Low forward on-state voltage for efficiency
- Robust dv/dt rating of 100 V/μs
- Standard recovery characteristics
Applications
- AC power conversion systems
- Motor speed regulation circuits
- Lighting control applications
- General purpose phase control
Procurement Notes
Verify the specific manufacturer source, as the 2N1795 part number appears across multiple semiconductor vendors including Powerex, Microsemi, and International Rectifier. Confirm that the received component matches the required electrical specifications, particularly the 200V rating and 110A current capacity. Ensure the package conforms to the TO-94 outline and check for RoHS compliance status if required by your assembly process.
Selection Notes
Select this component for low-voltage, high-current phase control requirements where rapid switching is not critical due to its standard recovery nature. The TO-94 stud package facilitates effective thermal management for continuous operation. Consider the 200V limit when designing for AC mains or lower voltage industrial supplies. Evaluate the 110A RMS current rating against your load profile to ensure adequate margin for thermal dissipation.
Part Context
The 2N1795 belongs to the family of silicon-controlled rectifiers used primarily in industrial power electronics. Historically associated with Powerex Inc., these devices are engineered for robustness in harsh electrical environments. The TO-94 form factor is a standard industry outline for stud-mounted thyristors, allowing direct mounting to heat sinks for efficient thermal transfer during high-current conduction phases.
Replacement Considerations
Cross-reference with equivalent SCRs from other manufacturers such as Microsemi or International Rectifier offering identical 200V/110A ratings in TO-94 packages. Verify pinout compatibility and thermal resistance values before substitution to maintain circuit integrity and cooling performance.
