The ST90-125L2KI is a stud-mount thyristor manufactured by Vishay. This thyristor is designed for phase control applications and is characterized by its high surge current capability and voltage blocking capability. It is typically used in applications such as motor control, welding equipment, and power supplies.

Applications

• Motor control
• Welding equipment
• Power supplies
• Battery chargers
• Lighting control

Features

• High surge current capability
• High voltage blocking capability
• Stud-mount package for efficient heat dissipation
• High dv/dt capability
• RoHS compliant

Benefits

• Robust performance under transient conditions due to high surge current capability.
• Reliable operation in high-voltage applications.
• Efficient heat dissipation ensuring stable operation at high currents.
• Reduced susceptibility to false triggering due to high dv/dt capability.
• Compliance with environmental regulations.

Additional Details

The ST90-125L2KI has a maximum repetitive peak off-state voltage (VDRM) and a maximum repetitive peak reverse voltage (VRRM) of 1200V. It features an average on-state current (IT(AV)) of 90A. The stud-mount package facilitates efficient heat transfer, allowing for high-current operation. The L2KI suffix may denote specific testing, screening, or lead forming variations. Its high dv/dt capability makes it less sensitive to spurious triggering caused by rapidly changing voltages. It's a robust device designed for demanding industrial applications.