MXLSMCJ110A Circuit Protection

TVS - Diodes are widely used in the electronic industry to provide protection against overvoltage disturbances (ESD). The MXLSMCJ110A is one such device that provides overvoltage protection of circuits in different applications. This article will discuss the application field and the working principle of the MXLSMCJ110A.

Application Field

The MXLSMCJ110A is a polymer ESD protection device designed to protect electronic circuits against ESD and other transient voltage surges. This device is especially suited for use in applications where the size of the PCB is limited, such as in portable and small handheld electronic devices. It has excellent surge handling capabilities and can be used in both high-frequency and high-voltage applications. It is designed for protection of low-voltage data and signal lines, including CANbus, VDSL, DSL, and other serial communication lines.

The MXLSMCJ110A provides ESD protection for up to eight pins, making it a convenient solution for applications where multiple signal lines need to be protected. It is also designed to reduce interference for communication lines by mo din g the ground point and upper signal line for high-speed data transmission. In addition, its compact size allows for easy mounting and installation, making it an excellent choice for applications where space is limited.

Working Principle

The MXLSMCJ110A employs a hybrid technology of silicon avalanche diode and silicon zener diode. The device utilizes a back-to-back diode structure, which is composed of two back-to-back zener diodes with one avalanche diode connected between the two. The avalanche diode provides ESD protection while the two zener diodes provide transient voltage protection. The device is triggered when an ESD pulse is detected, at which point the avalanche diode enters an avalanche breakdown. The avalanche current is then clamped via the two zener diodes, effectively reducing the ESD pulse to a safe level.

In addition, the MXLSMCJ110A has two other features that provide improved protection against transient voltage. The first feature is the built-in voltage clamp, which is activated when the voltage across the back-to-back diodes exceeds two times the zener voltage. The second feature is the high-voltage immunity, which is designed to protect against high surge voltages that may occur during power interruptions. Both of these features help to reduce the risk of damage to sensitive electronic components.

Conclusion

The MXLSMCJ110A is an excellent choice for ESD protection and transient voltage surge protection in applications where size and high levels of protection are key. This device is suitable for use in high-frequency and high-voltage applications, and can be used to protect low-voltage data and signal lines. Its hybrid technology provides improved protection against transient voltages and transient voltage surges. With its small size and easy installation, the MXLSMCJ110A is an ideal solution for applications where space is limited.