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Product Detailed Parameters
- Description：SCR 1.2KV 25A D2PAK
- 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：Surface Mount
- Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Supplier Device Package：TO-263AB (D2PAK)
- 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 25TTS12S is a surface mountable phase control silicon controlled rectifier (SCR) from the High Voltage Series. It features a D2PAK package and glass passivation technology for reliable operation up to a junction temperature of 125 °C. The device has a maximum average on-state current of 16 A and an RMS current of 25 A. It supports a maximum peak reverse voltage of 1200 V and a non-repetitive surge current of 300 A. The typical on-state voltage drop is 1.25 V at 16 A, with a holding current of 100 mA.
Feature Summary
- Designed specifically for medium power switching and phase control applications
- Utilizes glass passivation technology for stable performance at elevated temperatures
- Compatible with Vishay HPP input diodes, switches, and output rectifiers sharing identical package outlines
Applications
- Input rectification circuits
- Soft start mechanisms
- Single-phase bridge configurations
- Three-phase bridge units
Procurement Notes
Verify the specific ordering suffix against the manufacturer's official documentation to confirm packaging orientation and lead-free status. Ensure the selected variant matches the required thermal resistance and mounting footprint specifications for the intended PCB design. Cross-reference the part number with the latest datasheet revision to confirm availability and compliance details.
Selection Notes
Select this component based on the required voltage rating of 1200 V and the current handling capabilities of 16 A average or 25 A RMS. Consider the thermal management requirements, as the device relies on a D2PAK footprint for heat dissipation. Evaluate the gate triggering characteristics to ensure compatibility with the driving circuitry, particularly regarding the maximum DC gate voltage and current limits.
Part Context
This SCR belongs to the 25TTS...S High Voltage Series, which includes variants rated for 800 V, 1200 V, and 1600 V. All series members share the same physical dimensions and pinout configuration, facilitating design flexibility across different voltage levels within the same product family while maintaining consistent mechanical integration.
Replacement Considerations
Direct replacements include other Vishay 25TTS...S series devices such as the 25TTS08S or 25TTS16S, provided the voltage ratings align with the application requirements. Verify that any substitute maintains the D2PAK package outline and similar electrical parameters to ensure seamless integration without redesigning the PCB layout.
FAQ
What is the maximum rate of rise of off-state voltage for the 25TTS12S?
The maximum rate of rise of off-state voltage (dV/dt) is specified as 500 V/µs.
Does the 25TTS12S support surface mount installation?
Yes, the device is designed in a D2PAK (TO-220D SMD-220) package suitable for surface mount technology.
What is the maximum junction temperature range for this component?
The maximum junction and storage temperature range is -40 °C to +125 °C.
