USB50812CE3/TR13 Circuit Protection

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The USB50812CE3/TR13, part of the USB508xx series of TVS-Diodes, is a multi-function circuit protection device designed for high-speed signal line protection. It provides a fast, low-capacitance overvoltage protection combined with electrostatic discharge (ESD) protection for high-speed data lines. The device is designed for applications where fast response, low capacitance, and robust clamping of overvoltage transients are needed, such as high-speed video interfaces and consumer electronics.

In addition to its fast response time and low capacitance characteristics, the device provides ESD protection to IEC 61000-4-2 Level 4 (15 kV air-gap discharge, 8 kV contact discharge). The device also provides excellent clamping capability in high-voltage rail applications such as USB, HDMI, DVI, Ethernet, and audio-video connectors. The USB50812CE3/TR13 is suitable for use in applications requiring protection against ESD, overvoltage transient pulses, and inrush current.

The USB50812CE3/TR13 provides several features and benefits, such as a low capacitance of 0.17 to 0.22 pF, a low clamping voltage of 8.4 to 9.2 V, and an operating temperature range of -40 to +125°C. It is also designed to minimize load current and heat dissipation, to minimize power dissipation, and to reduce noise. In addition, the device is rated at 1 mA of current, making it suitable for application in low-current environments.

The working principle of the USB-50812CE3/TR13 is based on its construction. The device has a bidirectional, electrostatic discharge clamp (ESDC), and a low capacitance/high voltage transient voltage suppressor (TVS) diode. The diode clamps the voltage and diverts the current away from input or output data lines in the event of an overvoltage transient, providing surge protection. In addition, the diode acts as an open switch when the voltage exceeds its maximum rating, preventing further damage to the circuit. The ESDC provides ESD protection by clamping voltage levels between the device\'s positive and negative terminals, protecting against ESD pulses up to 15 kV in an air-gap discharge, and up to 8 kV for a contact discharge.

The USB50812CE3/TR13 is ideal for use in a wide range of applications including communication systems, consumer electronics, automotive, industrial, and medical. It is suitable for use in high-speed video applications such as USB, HDMI, DVI, and networking, and can also be used in DC-DC converters and motor control. It is also used in power management circuits, power adapters, and battery, AC/DC switch-mode, and switch-mode converters.

The USB50812CE3/TR13 provides a combination of low capacitance, fast response, and robust clamping of transient voltage to provide effective protection of high-speed data lines. It is ideal for use in applications where fast response and low capacitance are critical. The device is designed for high-speed signal line protection, with excellent ESD protection up to IEC 61000-4-2 Level 4. It also offers excellent clamping capability, making it ideal for mobile and consumer electronic applications.

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