ACST6-8SR

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Triac Type:	Logic - Sensitive Gate
Voltage - Off State:	800V
Current - On State (It (RMS)) (Max):	1.5A
Voltage - Gate Trigger (Vgt) (Max):	1.5V
Current - Non Rep. Surge 50, 60Hz (Itsm):	45A, 50A
Current - Gate Trigger (Igt) (Max):	10mA
Current - Hold (Ih) (Max):	25mA
Configuration:	Single
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	TO-262-3 Short Leads, I²Pak
Supplier Device Package:	I2PAK
Base Part Number:	ACST6

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Introduction

ACST6-8SR is a powerful triac semiconductor device and one of the most versatile semiconductor components available in the market. This triac is a high-speed bidirectional three-terminal thyristor with an ultra-low on-state voltage drop and gate trigger current. In addition, it offers enhanced surge peak and current overload capabilities for applications that require high resistive and/or inductive loads.

Application Field

The ACST6-8SR is well suited for a variety of applications including AC control, switching and regulation in electronic control systems, motor speed-centrifugal control motors, fan speed control switches, heaters, triac dimmer switches, and adjustable speed and fan motors. It is also useful in household appliances, lighting systems, and even industrial automation prototypes.

Working Principle

The ACST6-8SR triac works with two independent gate signals, and it is important to understand how it works in order to use it in a system effectively. The gates of the triac are two independent control signals, each with an active low voltage. When the two gate signals are low or off, the triac is inactive and blocks current from flowing. When either of the gate signals is high or on, the triac turns on, allowing current to pass through. The triac current remains on until the lower of the two gate voltages turns off again. The ACST6-8SR also has a maximum peak forward voltage capability and can sustain a maximum current surge of up to 50A, offering increased reliability and added protection against overloads. The integrated temperature protection and overload circuit also helps to protect the triac from damage when used in more demanding applications.

Conclusion

The ACST6-8SR is a powerful, bidirectional thyristor that is well-suited for a number of applications. Its two independent gate signals allow for precise control of the output current, and the integrated temperature protection and overload circuit adds to its overall reliability. Its low voltage drop and gate trigger current ensure that it can operate effectively in high-resistance and/or high-inductance loads, making it a great choice for switching and regulating systems.

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