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Product Detailed Parameters
- Description：SCR 1.2KV 25A TO220AB FP
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tube
- Voltage - Off State：1.2 kV
- Voltage - Gate Trigger (Vgt) (Max)：2 V
- Current - Gate Trigger (Igt) (Max)：45 mA
- Current - Hold (Ih) (Max)：100 mA
- Current - Non Rep. Surge 50, 60Hz (Itsm)：350A @ 50Hz
- SCR Type：Standard Recovery
- Operating Temperature：-40°C ~ 125°C
- Grade：-
- Qualification：-
- Mounting Type：Through Hole
- Package / Case：TO-220-3 Full Pack
- Supplier Device Package：TO-220AB Full-Pak
- Voltage - On State (Vtm) (Max)：1.25 V
- Current - On State (It (AV)) (Max)：16 A
- Current - On State (It (RMS)) (Max)：25 A
- Current - Off State (Max)：500 µA
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Overview
The Vishay 25TTS12FP is a high-voltage phase control silicon controlled rectifier (SCR) housed in a TO-220AB FULL-PAK package. It features a maximum repetitive peak reverse voltage of 1200 V and an RMS on-state current rating of 25 A. The device utilizes glass passivation technology for reliable operation up to a junction temperature of 125 °C. Key electrical characteristics include a typical on-state voltage drop of 1.25 V at 16 A, a non-repetitive surge current capability of 300 A, and a holding current of 100 mA.
Feature Summary
- Designed specifically for medium power switching and phase control applications
- Fully isolated package with UL E78996 approval and 2500 VRMS isolation voltage
- Glass passivation technology ensures reliable operation at elevated temperatures
- Qualified for industrial level performance standards
Applications
- Input rectification circuits requiring soft start functionality
- Single-phase bridge configurations
- Three-phase bridge configurations
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm lead-free status and production availability. Confirm that the component meets the required industrial qualification standards for the intended application environment. Ensure compatibility with Vishay High Power Products input diodes and switches sharing identical package outlines if system integration is planned.
Selection Notes
Select this component for applications requiring robust phase control capabilities within a standard through-hole mounting footprint. Evaluate thermal management requirements based on the specified junction-to-case thermal resistance. Consider the gate triggering characteristics and dV/dt ratings when designing the drive circuitry to ensure stable switching performance under varying load conditions.
Part Context
This part belongs to the 25TTS...FP High Voltage Series from Vishay High Power Products. The series includes variants with different voltage ratings, such as the 25TTS08FP rated for 800 V. All devices in this family share the same physical package outline and general design philosophy for medium power switching applications.
Replacement Considerations
The datasheet lists the 25TTS08FP as a related product within the same series, offering an 800 V rating instead of 1200 V. No other direct substitute part numbers are explicitly confirmed in the provided documentation.
