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Product Detailed Parameters
- Description：SCR 800V 25A D2PAK
- Series：-
- Mfr：Vishay General Semiconductor - Diodes Division
- Package：Tube
- Voltage - Off State：800 V
- 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 25TTS08S is a surface mountable phase control silicon controlled rectifier (SCR) from the High Voltage Series. It features an 800 V maximum repetitive peak reverse voltage (VRRM) and supports a maximum average on-state current of 16 A with an RMS rating of 25 A. The device exhibits a maximum on-state voltage drop of 1.25 V at 16 A and withstands non-repetitive surge currents up to 300 A. Designed for industrial applications, it operates within a junction temperature range of -40 °C to 125 °C and utilizes glass passivation technology.
Feature Summary
- Utilizes glass passivation technology for reliable operation at elevated junction temperatures.
- Designed specifically for medium power switching and phase control applications.
- Qualified for industrial level performance standards.
Applications
- Input rectification with soft start functionality
- Single-phase bridge circuits
- Three-phase bridge circuits
Procurement Notes
Verify the specific ordering suffix to confirm package orientation and lead-free status. The datasheet indicates TRL for left-oriented tape and reel and TRR for right-oriented tape and reel. Ensure the selected variant matches the required PCB footprint and soldering profile. Confirm that the component meets RoHS compliance requirements if applicable to the assembly process.
Selection Notes
Select this component based on the 800 V blocking capability and 16 A continuous current rating. Consider the thermal resistance of 1.1 °C/W when designing heatsinking solutions. Evaluate the dV/dt rating of 500 V/µs for noise immunity in high-speed switching environments. Ensure gate drive characteristics align with the specified triggering parameters for reliable turn-on.
Part Context
This SCR belongs to the 25TTS...S High Voltage Series, which includes variants with 1200 V and 1600 V ratings. The series is designed to be compatible with Vishay High Power Products input diodes, switches, and output rectifiers sharing identical package outlines. This compatibility simplifies thermal management and PCB layout design for complete power conversion stages.
Replacement Considerations
Cross-reference with other Vishay 25TTS series devices such as the 25TTS12S or 25TTS16S for higher voltage requirements. Verify pinout compatibility in the D2PAK package before substitution. Ensure thermal and electrical ratings of the replacement part meet or exceed the original design specifications.
FAQ
What is the maximum rate of rise of off-state voltage (dV/dt) for the 25TTS08S?
The maximum rate of rise of off-state voltage is 500 V/µs.
Does the 25TTS08S support lead-free soldering processes?
Yes, the PbF version of the 25TTS08S is lead-free and compliant with RoHS standards.
What is the typical turn-off time for this device?
The typical turn-off time (tq) is 110 µs.
