USBQ50412CE3/TR7 Circuit Protection

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TVS (Transil) diodes are clamping components which protect connected circuits from electrical surges. Specifically, the USBQ50412CE3/TR7 is a monolithic, low-capacitance diode which enables fast response to over-voltage transients. This device, when used to protect a circuit, can be integrated into consumer devices such as laptops and televisions as well as industrial equipment like factory automation controllers.

Application Field

The USBQ50412CE3/TR7 is a low-capacitance, ultra-low capacitance, bidirectional Transil diode which is used to protect any high-speed electronic equipment. It is especially suited for phones, televisions, and consumer electronics because of its low clamping voltage. The device is package in a SOT-323 plastic package and its surge current capability is up to 920mA peak. The USBQ50412CE3/TR7 also offers stability and protection against voltage transients caused by lightning or other electro-static discharges.

Working Principle

The USBQ50412CE3/TR7 works by clamping high voltage spikes in order to protect against over-voltage transients. When the device is triggered, it will switch on and rapidly absorb the energy from the incoming surge. The device then discharges this energy through its low impedance path, effectively blocking the surge from entering the circuit it is protecting. The USBQ50412CE3/TR7 features a low capacitance rating, allowing it to reduce the stored energy in the device over time and preventing it from emitting excessive transient noise into the protected circuit.

Conclusion

The USBQ50412CE3/TR7 is a Transil diode used for protection against over-voltage transients. It combines a low-capacitance rating and low clamping voltage in order to provide fast response times and stability. This device is ideal for consumer electronics, as well as industrial equipment, because of its ability to quickly and effectively absorb energy from voltage spikes. Its low capacitance rating also prevents it from emitting excessive transient noise. Ultimately, the USBQ50412CE3/TR7 is an ideal device for surge protection in a variety of applications.

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