MPLAD15KP51CAE3 Circuit Protection

The MPLAD15KP51CAE3 is part of the TVS - Diodes portfolio of low capacitance, unidirectional and bi-directional overvoltage protection solutions. The device offers excellent electrical performance for ESD, RF immunity and EFT protection across various applications such as industrial, telecommunications and networking, automotive and consumer products. In this article, we will discuss the application field and working principle of the MPLAD15KP51CAE3.

Application Field and Functionality

The MPLAD15KP51CAE3 is designed with the multi-protocol low capacitance diode. This provides an exceptionally low leakage current, making it suitable for protection of high speed signal lines in advanced telecom, computer, automotive, home appliance and medical applications. The device is constructed with two low capacitance diodes that can be series-connected or parallel-connected. This allows the device to be configured for either unidirectional or bi-directional protection, enabling the MPLAD15KP51CAE3 to meet a variety of application-specific requirements.

The device is designed to provide overvoltage protection in applications that require high level of signal integrity, such as USB, HDMI, DVI and Ethernet. The integrated LED indicator shows the status of the device, making it suitable for use in applications with electrical isolation. Furthermore, the device is available in both EIAJ 0820-4 and SOD-123W packages for easy mounting in tight spaces.

Working Principle

The MPLAD15KP51CAE3 is based on a unique combination of semiconductor and passivated-copper electroplating technologies. The multi-protocol low capacitance diode configuration keeps the capacitance between the two power pins at exceptionally low levels, providing greater signal integrity while ensuring maximum overvoltage protection ratings. The integrated LED indicator shows the status of the device, indicating whether it is in a protected or unprotected state. When the device is in a protected state, it begins to conduct current and the LED indicator illuminates.

The device includes several protection features including ESD, EFT and RF immunity protection. ESD protection is provided by a circuit that interrupts the flow of current whenever an electrostatic discharge event takes place. EFT protection is provided by a circuit which limits the maximum allowed voltage drop. Finally, the RF immunity protection prevents RF-induced current from passing through the device. All of these features combined make the MPLAD15KP51CAE3 an ideal solution for providing protection against overvoltage conditions while maintaining signal integrity.

Conclusion

The MPLAD15KP51CAE3 is a low capacitance Bi-Directional TVS diode that offers excellent electrical performance for ESD, RF immunity and EFT protection. Its integration of LED indicators and protection feature offers enhanced signal integrity while providing overvoltage protection. The device is ideal for applications such as USB, HDMI, DVI and Ethernet that require high signal integrity. The MPLAD15KP51CAE3 is available in both EIAJ 0820-4 and SOD-123W packages for easy mounting in tight spaces.