The BTA16-800SW is a 16A triac from Kersemi Electronic Co., Ltd., designed for AC switching applications. Triacs are bidirectional thyristors, meaning they can control AC power flow in both directions. The '800' in the part number indicates a blocking voltage of 800V. The 'SW' suffix often denotes a sensitive gate triac, requiring less gate current to trigger the device. Because this part is listed as end-of-life, check availability before designing it into new projects.

Applications

• Light dimmers for incandescent and halogen lamps.
• Motor speed control for universal AC motors (e.g., in power tools, appliances).
• Solid-state relays (SSRs).
• Heater control systems.
• AC power switching circuits.

Features

• Bidirectional switching capability.
• High blocking voltage: 800V.
• On-state current: 16A (RMS).
• Sensitive gate triggering.
• Isolated or non-isolated packages available (check the datasheet).

Benefits

• Efficient AC power control.
• Reduced component count compared to using two SCRs.
• Simple gate drive circuitry.
• Suitable for resistive and inductive loads.
• Compact size.

Additional Details

The BTA16-800SW is a three-terminal device: Main Terminal 1 (MT1), Main Terminal 2 (MT2), and Gate. A small current applied to the gate terminal triggers the triac into conduction between MT1 and MT2, regardless of the voltage polarity. The triac remains conducting until the current through MT1 and MT2 falls below the holding current. The datasheet provides detailed electrical characteristics, including maximum ratings, triggering parameters, holding current, and thermal resistance. Proper heatsinking is generally necessary to manage the heat generated during operation at higher currents. It is important to consult the datasheet for the specific package type (e.g., TO-220, TO-220AB) and its thermal resistance to determine appropriate heatsinking requirements. This part is listed as End of Life. Check for availability before designing into new applications.

Important Note: Always refer to the manufacturer's datasheet for complete specifications and application guidelines.