MXLSMCJ70CAE3 Circuit Protection

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TVS (Transient Voltage Suppressor) diodes are semiconductor devices used, most commonly, to protect sensitive electronic equipment from the damaging effects of transient voltage. The MXLSMCJ70CAE3 is one example in a range of TVS diodes used for various applications. This article looks at the application fields of this component and the working principle behind it.

What is the MXLSMCJ70CAE3

The MXLSMCJ70CAE3 TVS diode is a high surge rated device with an operative voltage of 70 Volts. It is a unidirectional diode and is housed in a small ‘SMC’ (Surface Mounted Devices) package, which makes it suitable for use in electronic systems with limited PCB (Printed Circuit Board) space. The MXLSMCJ70CAE3 is developed using Multi-Functional Array (MFA) technology and has a low forward voltage drop as well as a high peak pulse power rating.

Application Field

The MXLSMCJ70CAE3 is designed to provide surge protection for sensitive electronic equipment. It is typically recommended for use in automotive and computer systems, as well as other areas, such as general purpose electronics, communications systems, instrumentation systems, and industrial control applications. It is also suitable to protect devices which are connected to networks such as Ethernet, USB, and RS-232.

The MXLSMCJ70CAE3 is designed to protect against voltage surges caused by ESD (Electrostatic Discharge), as well as other overvoltage transients such as those created by a lightning strike. As these surges can easily damage electronic components, the MXLSMCJ70CAE3 provides an effective form of protection against them.

Working Principle

The MXLSMCJ70CAE3 works in two stages in order to provide effective surge protection. In the first stage, the device has a high clamping voltage which absorbs the bulk of a transient voltage. This is achieved by a pre-programmed Zener reaction between the anode and the gate. In the second stage, the device ‘clears’ the transient voltage, meaning that the clamping voltage falls and the current is transformed into heat energy.

The MXLSMCJ70CAE3 is designed to work optimally as part of a multilayered protection circuit. This means that the device should be used in combination with other safety components, such as capacitors, resistors, and fuses, in order to provide effective protection from transient voltages.

Conclusion

The MXLSMCJ70CAE3 TVS diode is an effective means of protecting sensitive electronic equipment from the damaging effects of transient voltages. It is well-suited for use in a variety of applications, such as automotive and computer systems, general purpose electronics, communications systems, instrumentation systems, and industrial control applications. The device works in two stages, designed to provide effective surge protection using pre-programmed Zener reactions and current-to-heat energy transformation.

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