BTA16 General Purpose TRIAC 600V 16A TRIAC TO-220

BTA16 General Purpose TRIAC 600V 16A TRIAC TO-220 is a high-performance bidirectional thyristor designed for AC switching applications where reliability and efficiency are paramount. This versatile component manages a continuous RMS current of up to 16A, which allows it to control heavy AC loads with minimal heat generation. Consequently, it serves as an excellent choice for motor speed controllers, light dimmers, and heating element regulators. The BTA series specifically features an insulated tab, meaning the internal ceramic pad provides electrical isolation between the terminals and the mounting tab. Therefore, you can mount this TRIAC directly onto a heatsink without requiring an additional insulating mica washer. Furthermore, its robust 600V rating ensures it handles standard mains voltages and inductive transients with significant safety margins.

Key Features:

• Internally Isolated Tab: The BTA16 features a 2500 V_RMS isolation voltage between the internal die and the external cooling tab, simplifying heatsink assembly.
• High Current Capacity: It handles an RMS on-state current of 16A, making it suitable for high-power household and industrial appliances.
• Four-Quadrant Triggering: This device operates in all four quadrants, allowing for flexible triggering from various control circuits.
• Low Thermal Resistance: High-quality construction ensures efficient heat transfer, which prolongs the lifespan of the component during continuous operation.
• Superior Surge Capability: It withstands non-repetitive surge currents up to 160A, protecting the circuit during initial power-up or stall conditions.

Technical Specifications:

• Repetitive Peak Off-State Voltage (V_DRM): 600 V
• RMS On-State Current (I_T(RMS)): 16 A
• Non-Repetitive Surge Peak On-State Current (I_TSM): 160 A (at 50 Hz)
• Gate Trigger Current (I_GT): 50 mA (Standard version)
• Gate Trigger Voltage (V_GT): 1.3 V maximum
• Holding Current (I_H): 50 mA maximum
• Isolation Voltage (V_ISO): 2500 V_RMS
• Operating Junction Temperature: −40°C to +125°C

Mechanical Specifications:

• Package Style: TO-220AB (Isolated)
• Case Material: Molded Plastic (UL 94 V-0 Rated)
• Lead Finish: Matte Tin
• Terminal Type: Through-hole leads for secure PCB mounting.

Dimensions:

• Total Height: ≈ 28.5 mm (Including leads)
• Body Width: ≈ 10.3 mm
• Body Length: ≈ 15.6 mm
• Lead Pitch: 2.54 mm
• Tab Hole Diameter: ≈ 3.7 mm

Pinout and Wiring:

• Pin 1 (Main Terminal 1): Connect this pin to the neutral or reference side of the AC load circuit.
• Pin 2 (Main Terminal 2): Connect this terminal to the AC load itself.
• Pin 3 (Gate): Apply a trigger pulse to this pin relative to MT1 to initiate conduction.
• Wiring Note: However, you must use an appropriate snubber circuit (resistor and capacitor) when driving inductive loads like motors to prevent unintended triggering from high dV/dt.

Datasheet Reference:

• Download BTA16 TRIAC Datasheet

Commonly Used in:

• Phase Control Controllers: Widely used in light dimmers and variable speed fan controllers.
• Static Switching: Replaces mechanical relays for silent, spark-free AC switching in smart home devices.
• AC Motor Starters: Providing soft-start capabilities for power tools and pumps.

Applications:

• Heating Regulation: Controlling temperatures in electric ovens, water heaters, and soldering stations.
• Appliance Control: Managing power in washing machines, vacuum cleaners, and kitchen appliances.
• Industrial Logic: Interfacing low-power microcontrollers to high-power solenoid valves and contactors.

Equivalent Models:

• BTB16: The non-isolated version of the same TRIAC, however, it requires an external insulator for heatsink mounting.
• TIC246M: A functional equivalent with similar 16A/600V ratings in a TO-220 package.
• BTA16-800B: A higher voltage variant (800V) that serves as a direct drop-in replacement for improved transient headroom.

Package Includes:

• 1 x BTA16 General Purpose TRIAC 600V 16A TRIAC TO-220