USB50415E3/TR7 Circuit Protection

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Transient voltage suppression diodes (TVS) are widely used components for protecting electronic circuitry from damage by high energy electrical transients such as electrostatic discharge (ESD) and electrical overstress (EOS) events. The USB50415E3/TR7 is an excellent example of a TVS diode, offering a variety of useful features and outstanding performance characteristics. This article will discuss the application field and working principles of the USB50415E3/TR7.

Application Field of USB50415E3/TR7:

The USB50415E3/TR7 is a unidirectional TVS diode designed to provide reliable protection against high-energy transient spikes in the range of 8.8V to 135V. It is particularly well-suited for use in consumer and industrial applications, such as charging systems for microcontrollers and similar electronics. The USB50415E3/TR7 is also ideal for protecting against ESD and EOS events in automobiles, aircraft, and other transportation systems and appliances.

Working Principle of USB50415E3/TR7:

The USB50415E3/TR7 is a silicon-based bi-directional diode that is triggered by a voltage spike that exceeds its voltage breakdown level (VBR). When this happens, current will rush through the diode in a very short time, which will cause an increase in temperature due to the heat generated by the current. However, due to the positive-temperature-coefficient of the USB50415E3/TR7, its rate of current flow will reduce as the temperature increases, limiting the peak current and preserving the system from damage. After the spike has been dissipated, the diode will automatically recover to its non-conductive state.

Conclusion:

The USB50415E3/TR7 is an excellent example of a TVS diode, providing reliable protection against high-energy transient spikes in the range of 8.8V to 135V. It is well-suited for use in consumer applications, industrial applications, as well as in automobiles, aircraft, and other transportation systems and appliances. The diode’s working principle is based on the positive-temperature-coefficient of the diode, which allows it to regulate the current flow while protecting the system from damage.

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