USB50415CE3/TR7 Circuit Protection

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TVS - Diodes are a type of protection device used to protect circuits from overvoltage transients. The goal is to quickly limit the voltage that reaches critical components. This is accomplished by breaking the circuit in the presence of a sustained or high-voltage surge. This type of protection is commonly used on circuits for high-speed data communications and in power supplies to protect against lightning or other power form perturbations.

The USB50415CE3/TR7 is a member of STMicroelectronics’ electrostatic discharge (ESD) protection family. It is a diode which is designed to protect against electrostatic discharges in automotive, communications and industrial systems. It includes Transil™ ESD protection in both its anode and cathode pins. This diode operates at low-power supply voltages down to 2.5 V.

The USB50415CE3/TR7 has a wide variety of applications and its most common application is in car, communications, and industrial systems where it offers electrostatic protection from a potential voltage surge. It is commonly used in devices such as mobile phones, tablets, computing, consumer devices, USB, audio, and video. It can also be used as an interface between digital and analog signals to protect equipment from high voltage spikes. The USB50415CE3/TR7 can be used in switching power supplies, Ethernet lines, and other power lines.

The working principle of the USB50415CE3/TR7 is based on avalanche breakdown. In this mechanism, the junction of the diode is charged smoothly until the electric field gets so high that electrons in the junction are accelerated and gain enough energy to create electron - hole pairs and break the electric field. This results in a sudden spike of current which in turn forces the voltage across the diode to drop significantly. This process is called “avalanche breakdown”.

The USB50415CE3/TR7 also features avalanche, pulse-width and surge-performance ratings, as well as low junction or threshold voltages. Due to the low clamping voltage, it guarantees a low voltage drop across the device, which helps maintain high efficiency in power applications. Furthermore, its low capacitance of 1 pF also allows for faster transient responses meaning it can be used with high-speed data transmission. In brief, the USB50415CE3/TR7 exhibits very low capacitance, low dynamic zener resistance, low thermal resistance, high surge-withstand capability, high-clamping voltage and low capacitive switching.

To summarize, the USB50415CE3/TR7 is a TVS - Diode device designed to protect against overvoltage transients. With its wide variety of applications and its ability to provide excellent electrostatic protection from potential voltage surges, this device has become one of the most popular ESD protection solutions. Its working principle is based on avalanche breakdown, which makes it an ideal choice for high-speed data transmission. The USB50415CE3/TR7 also offers low capacitance, low dynamic zener resistance, low thermal resistance, high surge-withstand capability, high-clamping voltage and low capacitive switching.

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