BTA40-600B TRIAC – 600V 40A High-Power AC Switching Device

The BTA40-600B is a high-current TRIAC designed for demanding AC power control and switching applications. With a repetitive peak off-state voltage of 600V and an RMS on-state current rating of 40A, it is ideal for industrial motor controls, heater regulation systems, power controllers, lighting dimmers, solid-state relays, and heavy-duty AC load switching. The insulated RD-91 package provides excellent thermal performance and simplifies heatsink mounting.

Key Features -

• High-power TRIAC for AC switching and control

• 600V repetitive peak off-state voltage

• 40A RMS on-state current capability

• High surge current capacity up to 400A

• Insulated RD-91 package for simplified heatsink installation

• Low gate trigger voltage for easy interfacing

• Suitable for resistive and inductive loads

• Reliable operation in industrial environments

Specifications -

• Product Type - TRIAC

• Part Number - BTA40-600B

• Manufacturer - STMicroelectronics

• Repetitive Peak Off-State Voltage (VDRM/VRRM) - 600V

• RMS On-State Current (IT(RMS)) - 40A

• Peak Non-Repetitive Surge Current (ITSM) - 400A

• Peak On-State Voltage (VTM) - 1.55V

• Gate Trigger Voltage (VGT) - 1.5V Max

• Holding Current (IH) - 80mA Max

• Package Type - RD-91 (TOP3 Insulated Package)

• Number of Pins - 3

• Mounting Type - Panel Mount / Through-Hole

• Maximum Operating Temperature - 125°C

Applications -

• Industrial motor speed controllers

• Heater and temperature control systems

• High-power lighting dimmers

• Solid-state relays (SSR)

• AC power switching equipment

• Industrial automation systems

• Home appliance control circuits

• Power distribution and regulation systems

• Energy management equipment