QK016LH4TP

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Thyristors - TRIACs are three terminal, bidirectional electronic switching devices with the property of blocking the flow of current in the off state. The QK016LH4TP is a TRIAC device designed specifically to provide overvoltage protection and railway applications such as power switching, relayless front-end protection, communications, system backup and uninterruptible power supplies.

The TRIAC is comprised of two inverse parallel, independent SCRs which have the same gate and anode connections. When the TRIAC is turned on, both junctions become conducting allowing power to flow in both directions, making it suitable for both AC and DC switches on the same device. The QK016LH4TP is a TRIAC device capable of safely switching multiple power transfer cycles up to 800 volts and 16A.

The QK016LH4TP utilizes the End of Life (EOL) protection feature, which monitors the gate-anode current to allow safe and reliable operation. When the device is used in AC switching applications, the EOL feature ensures that the device is shut down in the case of over voltage, over current, over temperature or if any other adverse operating states are present. This feature allows the device to be used in a variety of different applications and offers a degree of protection against over current, open circuit and high temperature conditions.

The working principle of the QK016LH4TP is based on the concept of controlling high voltage switching with the use of a low voltage signal. When the signal applied to the gate is higher than the threshold voltage, the gate-cathode junction breaks down and current flows through the device, which triggers a switching action. The signal applied to the gate then controls the amount of current that flows through the device, allowing for precise control over the power switching. The EOL protection feature ensures that the device is shut down in the case of adverse operating conditions and allows for safe, reliable operation.

The QK016LH4TP is suitable for a variety of applications in a power supply system including power supply monitoring, power switches, AC motor control, lighting control and many more. It can also be used in cases where overvoltage protection is needed. The device is also suitable for applications in the railway environment as it provides an efficient method of controlling high voltage switching operations.

The QK016LH4TP is a reliable and efficient device specifically designed for controlling high voltage switching. Its EOL protection feature ensures that it can be safely used in a variety of power supply applications, while its low voltage operation makes the device suitable for a variety of railway applications. With the ability to switch multiple power transfer cycles up to 800 volts and 16A, the QK016LH4TP is an ideal choice for power switching, relayless front-end protection, communications, system backup and uninterruptible power supplies.

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