3KP70CA-B

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TVS (Transient Voltage Suppressor) diodes are semiconductor components that act as protection elements. They are designed to protect voltage-sensitive elements from overvoltage and electrostatic discharge (ESD). The 3KP70CA-B is a popular TVS diode manufactured by Diodes Incorporated. This device offers low clamping voltage, high surge capability, and fast surge response. In this article, we will discuss the application field and working principle of the 3KP70CA-B.

Application Field

The 3KP70CA-B is a unidirectional TVS diode that is designed to protect circuits and components from overvoltage and ESD transients. It is specifically designed for applications such as lighting and opto electronics, including LED circuits, signal transmission, data processing, telecommunications, computers, microelectronics, and automotive products. It is also suitable for protecting high-speed data lines from ESD, such as USB interfaces and Ethernet lines.

The device is designed to meet the specifications of various ESD protection standards, such as IEC 61000-4-2 (Air Discharge), IEC 61000-4-4 (Burst Discharge), IEC 61000-4-5 (Surge Discharge), and UL 709B (Surge Immunity). It provides superior ESD and overvoltage protection in a wide range of operating voltages and temperatures.

Working Principle

The 3KP70CA-B is a bidirectional diode. It is designed to be a low-clamping diode, enabling it to provide overvoltage protection with low clamping voltage. It has a very fast response time, allowing it to protect high-speed data lines from ESD with minimal signal degradation.

When a transient voltage exceeds the breakdown voltage of the 3KP70CA-B, the surge current flows through the component. The surge current is then limited and dispersed over a wide area, protecting both the device and the application circuitry from any damage. The device offers low clamping voltage and can handle high surge currents, making it suitable for a wide range of overvoltage protection applications.

The 3KP70CA-B is also designed to meet the requirements of various ESD protection standards. It has a low capacitance, making it capable of providing ESD protection without significantly affecting the signal timing. It also has a low turn-on voltage and high diode recovery time, ensuring fast response and maximum protection.

Conclusion

The 3KP70CA-B is a unidirectional TVS diode designed to protect circuits and components from overvoltage and ESD transients. It offers low clamping voltage, high surge capability, and fast surge response, making it suitable for a wide range of applications, including LED circuits, signal transmission, data processing, telecommunications, computers, microelectronics, and automotive products. It also meets the requirements of various ESD protection standards and is capable of providing ESD protection without significantly affecting the signal timing.

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