The BT138-800 is a high-performance Triac manufactured by NXP Semiconductors, designed to manage AC loads in a variety of applications. This passivated, sensitive gate triac is capable of controlling large power flows with just a small input, making it an ideal choice for interfacing with microcontroller logic levels.

Key Features

• High Blocking Voltage: With a maximum rating of 800V, the BT138-800 is suitable for applications requiring high voltage operation.
• High Surge Current: It can handle surge currents up to 25A, making it robust against short overloads.
• Gate Trigger Current: A low IGT of less than 35 mA ensures that the device can be easily triggered with low power signals.
• Quadrant Triggering: Capable of being triggered in all four quadrants, offering flexibility in control and triggering options.
• Planar Passivated: The planar passivated chip provides reliability and stability against overvoltage conditions.

Applications

The BT138-800 is widely used in applications such as motor control circuits, domestic lighting controls, static switching, and thermal control systems. Its ability to switch both phases of an AC power supply makes it a versatile choice for bidirectional control of AC loads.

Technical Specifications

Overall, the BT138-800 from NXP stands out for its high voltage and current handling capabilities, low gate triggering requirements, and reliable performance in controlling AC loads across various industrial and domestic applications.