Series:	--
Packaging:	Tube
Part Status:	Active
Triac Type:	Standard
Voltage - Off State:	600V
Current - On State (It (RMS)) (Max):	12A
Voltage - Gate Trigger (Vgt) (Max):	1.1V
Current - Non Rep. Surge 50, 60Hz (Itsm):	120A @ 60Hz
Current - Gate Trigger (Igt) (Max):	35mA
Current - Hold (Ih) (Max):	45mA
Configuration:	Single
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-220-3
Supplier Device Package:	TO-220AB
Base Part Number:	BTB12

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Thyristors - TRIACs

Introduction

A TRIAC (Triode for Alternate Current), also known as a thyristor, is a solid-state component which is used primarily for switching and controlling alternating current (AC), and is derived from the mechanism of two silicon controlled rectifiers (SCRs). The BTB12-600CW3G is a TRIAC component that is manufactured by Santak Electric Company and is built for use in different applications that require AC line voltage switching. It is most commonly used in applications such as HVAC control systems, indoor climate control, industrial instrumentation, and similar industrial and commercial equipment.

Description of BTB12-600CW3G

The BTB12-600CW3G is a three-terminal component comprised of a gate and two AC terminals on a TO-126 or TO-218 package. The component also features full on-state current rating (I_T) of 12 A (up to 600 V, 1.0 A/µs). Additionally, the component includes off-state voltage rating (V_drm) of 400 V (also up to 600 V when V_G=0V), and can withstand surge currents up to 600 A, along with other applicable ratings for positive temperature coefficient (PTC). The component has an operating temperature range of -55°C to 125°C.

Working Principle

When initially turned on, the BTB12-600CW3G TRIAC behaves like two back-to-back SCRs (Silicon Controlled Rectifiers). The gates of the SCRs are connected, and each has one leg in each of the two AC terminals. The gate or “G” terminal initiates conduction by alternately triggering the two SCRs. This conduction is maintained until the gate signal is removed due to the latching action of the TRIAC. It is important to note that once the BTB12-600CW3G is triggered, it remains in a “conduction” state until the current flowing through it drops to zero. This is known as the “quench time” and is typically around 1.0A/µS.

Applications

The BTB12-600CW3G is primarily used for controlling AC line voltage in a variety of applications, including HVAC control systems, industrial instrumentation, reliable motor control systems and many more. The component allows the most efficient and safe operation of the equipment because of its inherent switching capabilities. The component is usually mounted in a socket or on a heatsink, and its strong construction and wide operating temperature range enable it to withstand extreme working conditions.The component is also suitable for controlling the voltage of heater elements, solenoids and motors, as well as for switching any other AC line voltage loads. In industrial instrumentation, the BTB12-600CW3G is used for controlling the current and voltage to motors, allowing tuning of the desired speed and torque, and is also commonly used as an interface between digital and analog systems.

Conclusion

The BTB12-600CW3G is a three-terminal TRIAC component from Santak Electric Company. The component is mainly used for AC line voltage switching and is most suitable for applications such as HVAC control systems, indoor climate control, industrial instrumentation and reliable motor control systems. The component allows the most efficient and safe operation of the equipment because of its inherent switching capabilities, and is also suitable for controlling the voltage of heater elements, solenoids and motors.

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