BT138 - TRIAC (600V - 12A)

Description

BT138 - TRIAC (12A, 600V) The BT138 is a TRIAC (Triode for Alternating Current) designed for medium-power AC control applications. It is widely used in circuits where precise control of AC power is required, such as in lighting dimmers, fan speed controls, motor controllers, and heating elements. The BT138 is capable of handling up to 12A RMS of current and 600V of voltage, making it suitable for moderate-to-high power AC loads. Key Features of BT138: Voltage and Current Ratings: Repetitive Peak Reverse Voltage (V_RRM): 600V The BT138 can withstand 600V of reverse voltage, which is suitable for typical residential and industrial AC applications. Average On-State Current (I_T(RMS)): 12A The BT138 is designed to handle up to 12A RMS of continuous current, making it suitable for controlling medium-power AC loads. Gate Triggering: Gate Trigger Voltage (V_GTM): 1V to 2V Gate Trigger Current (I_GTM): 5mA to 10mA The BT138 is triggered by a relatively low gate voltage (1V to 2V) and a small gate current (5mA to 10mA), which makes it easy to interface with low-power control circuits like microcontrollers or logic devices. Low On-State Voltage Drop: The BT138 features a low on-state voltage drop, which helps to minimize power losses during conduction, improving the efficiency of the circuit. Bidirectional Control: Being a bidirectional TRIAC, the BT138 can conduct during both the positive and negative half-cycles of the AC waveform, making it suitable for controlling AC loads where al