Q4004F32

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Triac Type:	Logic - Sensitive Gate
Voltage - Off State:	400V
Current - On State (It (RMS)) (Max):	4A
Voltage - Gate Trigger (Vgt) (Max):	2V
Current - Non Rep. Surge 50, 60Hz (Itsm):	46A, 55A
Current - Gate Trigger (Igt) (Max):	10mA
Current - Hold (Ih) (Max):	20mA
Configuration:	Single
Operating Temperature:	--
Mounting Type:	Through Hole
Package / Case:	TO-202 Long Tab
Supplier Device Package:	TO-202

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Q4004F32 Application Field and Working Principle

Thyristors - TRIACs are a type of powerful semiconductor switch. They are used in a variety of applications such as lighting, appliance control, motor control, and process control. The Q4004F32 is a special type of TRIACs which has the following features: a repetitive peak off-state voltage of 400V, a continuous on-state current of 4A, and an average on-state power dissipation of 32W.

What Is a TRIAC and How Does It Work?

The TRIAC is a three-terminal, two-junction switch that is used for power control applications. It is basically two thyristors connected in inverse parallel. A thyristor is a four-layer, three-terminal semi-conductor switch which can be switched on and off with a control signal.When a voltage is applied across the main terminals (MT1 and MT2) of the TRIAC, it will turn on. When current passes through one of the main terminals, it can be switched off by reducing the current at the other terminal.The main difference between the TRIAC and a regular thyristor is that it can be turned on and off in both directions, allowing it to be used as an AC switch. Additionally, the TRIAC can also be used as a phase control device.When a phase control device is used, it allows for more precise control of the device. The phase control device uses the control signal (G) to vary the phase shift of the power circuit, allowing for smoother control of the device.

Q4004F32 Application Field and Operating Principles

The Q4004F32 is a 400V, 4A, 32W TRIAC which is commonly used in lighting and appliance applications. It is also used in power circuits as a phase control device.The Q4004F32 is typically used in applications that require a low voltage switching power supply. The power rating of this device allows it to switch high current with minimal losses due to its low on-resistance properties.To operate the Q4004F32, a control signal (G) must be applied to one of its main terminals, depending on the desired operation. When the voltage across the main terminals is positive, the TRIAC will conduct. When the voltage is reduced, the current will decrease and the TRIAC will turn off.When the device is used as a phase control device, the control signal will control the phase shift of the power circuit. This allows for precise control of the power circuit.

Conclusion

The Q4004F32 is an important part of modern electronic circuits, providing precise control of power supplies in both switching and phase-control circuits. Its low on-resistance properties make it ideal for applications that require a low voltage switching power supply. Furthermore, its high peak off-state voltage of 400V and its continuous on-state current of 4A make it an ideal choice for lighting and appliance applications.

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