Q4035NH5TP

Thyristors, or Silicon-Controlled Rectifiers (SCRs), are three-terminal devices that have the capability to control the flow of electric current in a circuit. TRIACs (Triode for Alternating Current), on the other hand, are special Thyristors that can be triggered into conduction regardless of the polarity of the applied voltage. The device in question, the Q4035NH5TP, is a specific type of TRIAC, and this article will first discuss what application field this device is used in and provides some general information on how it operates.The Q4035NH5TP is a Triode Alternating Current Switch (TRIAC), which is widely used in applications requiring the control of AC circuits, such as in dimmers, household appliances, and LED lighting. The Q4035NH5TP is a popular option for such applications due to its high voltage and current ratings, high switching speed, and its low gate triggering current.The device is constructed to have three electrodes - a gate, main terminal (MT1), and main terminal 2 (MT2). The gate plays an important role in controlling the device\'s conduction. When a small triggering current is applied to the gate, the device will be “turned on”, allowing current to through the main terminals. The trigger current requires very minimal energy to turn on the TRIAC, allowing it to be used in applications that require a low power switch. Additionally, the device is designed to be triggered by current regardless of the polarity of the applied voltage, which allows it to be used in AC circuits.The operation of the Q4035NH5TP is controlled by its gate. When a small gate voltage is applied, the TRIAC will be triggered and will begin to freely conduct current from MT1 to MT2 regardless of the polarity of the applied voltage. This can be across positive or negative half-cycles, which gives the device its name - TRIAC, for “Triode for Alternating Current”. This allows current to appear at the output regardless of the polarity of the input voltage, making it an efficient way to control the current in an AC circuit.Once the device has been triggered on, the current between the device\'s main terminals continues to flow until the the current across the two main terminals reaches a critical level, at which the device begins to switch off. Once the current passing through the device has decayed below this critical level, the device will switch off automatically. This makes the TRIAC an efficient and reliable option for controlling the current in an AC circuit.In summary, the Q4035NH5TP is a type of TRIAC that is widely used in applications requiring the control of AC circuits, such as dimmers, household appliances, and LED lighting. The device has a unique construction with three electrodes, a gate and two main terminals, and operates by the application of a small gate voltage. This allows it to “turn on” and conduct current from the main terminals regardless of the polarity of the applied Voltage, making it an efficient and reliable option for controlling the current in an AC circuit.

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