Professional IC Distribution & Technical Solutions

The ACST47S is a semiconductor device manufactured by STMicroelectronics (ST). Below are its key specifications, descriptions, and features:

Specifications:

• Type: AC Switch (Triac)
• Voltage Rating:
• Repetitive Off-State Voltage (VDRM): 800V
• Gate Trigger Voltage (VGT): 1.5V (typical)
• Current Rating:
• On-State Current (IT(RMS)): 47A
• Non-Repetitive Surge Current (ITSM): 470A (for 10ms)
• Gate Trigger Current (IGT): 50mA (typical)
• Holding Current (IH): 50mA (typical)
• Operating Temperature Range: -40°C to +125°C
• Package: TO-220AB (isolated tab)

Descriptions:

• The ACST47S is a high-performance AC switch (Triac) designed for industrial and consumer applications requiring robust AC power control.
• It is optimized for snubberless operation, reducing the need for external components in inductive load switching.
• Features high noise immunity and low EMI generation, making it suitable for motor control, heating systems, and lighting applications.

Features:

• Snubberless Design: Reduces external RC snubber requirements.
• High Commutation Capability: Ensures reliable switching under inductive loads.
• High Surge Current Handling: Supports short-duration overloads.
• Isolated Package (TO-220AB): Enhances thermal performance and safety.
• Low Gate Trigger Current: Simplifies drive circuit design.

For detailed datasheets and application notes, refer to STMicroelectronics' official documentation.