CQ202-4DS

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Triac Type:	Internally Triggered
Voltage - Off State:	400V
Current - On State (It (RMS)) (Max):	4A
Voltage - Gate Trigger (Vgt) (Max):	1.75V
Current - Non Rep. Surge 50, 60Hz (Itsm):	--
Current - Gate Trigger (Igt) (Max):	9mA
Current - Hold (Ih) (Max):	5mA
Configuration:	Single
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-202 Long Tab
Supplier Device Package:	TO-202

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Thyristors - TRIACs

Thyristors, also referred to as TRIACs, are solid-state devices used to control current and voltage in AC circuits. Thyristors are made up of two differently doped semiconductor layers, a control gate and two main terminals. When the control gate is triggered, current begins to flow between the main terminals and the circuit is said to be "on".The CQ202-4DS is a four-pin TRIAC-based electronic device used for controlling the conduction of AC current through a solid-state medium. It was designed to allow control of an AC load from a momentary DC source. The CQ202-4DS allows the user to easily control the on-off, or "toggle" switch, of an AC circuit.The CQ202-4DS TRIAC has four major operating pins: the gate, main terminal A (MT1), main terminal B (MT2), and main terminal C (MT3). The gate pin provides the control signal to the TRIAC switch. When the gate pin is turned on, the TRIAC switch is activated and current begins to flow. The main terminals allow current to flow between them when the switch is activated. The main terminals can be connected to a power supply, motor, transformer, or other load.The CQ202-4DS TRIAC is a versatile device that can be used in many applications. It is commonly used in home appliances, motor control, lighting control, and industrial automation. This TRIAC is an ideal choice for applications that require a fast response time and high power handling capabilities.The CQ202-4DS is a three-terminal device, meaning that three terminals are needed for operation. The gate control signal is supplied through the gate pin which is connected to the controlling device. The main terminals are connected to the power supply, motor, transformer, or other load. When the gate control signal is received, the TRIAC is activated and current starts to flow between the main terminals.The CQ202-4DS operates on a switch-on voltage of two to three volts, making it a great choice for low voltage applications. It is also rated for operation up to 400V, allowing it to handle high voltage circuits. The CQ202-4DS is designed to have low power losses and fast turn-off time, meaning it can easily switch from a conducting to a non-conducting state.In conclusion, the CQ202-4DS is a versatile solid-state device used for controlling the conduction of AC current through a solid-state medium. This four-pin TRIAC provides fast response times and high power handling capabilities and is a great choice for low voltage applications. With its many applications and capabilities, the CQ202-4DS is a great solution for controlling AC circuits.

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