BTA41-600B 600V 40A General Purpose TRIAC TO-3P

BTA41-600B 600V 40A General Purpose TRIAC (TO-3P) delivers high-power AC switching for industrial and consumer applications. Engineers rely on it for motor control, heating regulation, light dimming, and high-current AC load management with reliable performance and robust design.

Key Features:

• High Voltage Capability: Withstands up to 600 V for AC mains applications.
• High Current Rating: Supports continuous current up to 40 A at proper heatsinking.
• Insulated TO-3P Package: Provides electrical isolation from the heatsink (insulation up to 2500 Vrms).
• Robust Commutation: Ensures reliable switching in resistive and inductive loads.
• Low Thermal Resistance: Simplifies heat management in high-power circuits.
• General-Purpose TRIAC: Compatible with standard AC load switching designs.

Technical Specifications:

• Repetitive Peak Off-State Voltage (V_DRM, V_RRM): 600 V
• RMS On-State Current (I_T(RMS)): 40 A
• Non-Repetitive Surge Current (I_TSM): 400 A (one cycle, 50 Hz)
• Gate Trigger Current (I_GT): 50 mA max (quadrant dependent)
• Holding Current (I_H): 100 mA max
• On-State Voltage Drop (V_T): ~1.55 V at I_T = 40 A
• Operating Junction Temperature: −40 °C to +125 °C

Mechanical Specifications:

• Package: TO-3P insulated tab package
• Isolation Voltage: Up to 2500 Vrms between tab and pins
• Mounting: Through-hole mounting with boltable heatsink option
• Lead Finish: Tin-plated leads for reliable solderability
• Body Material: Epoxy-molded housing for durability

Dimensions:

• Body Height: ~20.0 mm
• Body Width: ~15.0 mm
• Lead Pitch: Standard TO-3P pin spacing
• Tab Thickness: ~4.5 mm (for heatsinking)

Pinout and Wiring:

• Pin 1: Main Terminal 1 (MT1)
• Pin 2: Main Terminal 2 (MT2)
• Pin 3: Gate (G)
• Tab: Connected internally to MT2
• Wiring Note: Drive the gate via resistor for triggering, connect MT1 and MT2 in series with AC load and mains supply.

Datasheet Reference:

• Access the official STMicroelectronics datasheet for BTA41-600B for detailed electrical parameters, thermal resistance data, and application circuits.

Applications:

• AC Motor Control: Implement soft start and phase control for industrial and domestic motors.
• Heater Control: Use in temperature regulation circuits for ovens, dryers, and industrial heaters.
• Light Dimmers: Enable smooth phase-controlled dimming for incandescent and halogen lamps.
• Power Switching: Manage high-power AC loads in consumer and industrial systems.

Equivalent Models:

• BTA41-800B: Higher voltage variant rated for 800 V
• T50 Series TRIAC: Alternative high-current TRIACs from Littelfuse
• BTB41-600B: Similar rating TRIAC in non-insulated TO-3P package

Package Includes:

• 1 x BTA41-600B 600V 40A General Purpose TRIAC (TO-3P)