MXLSMBJ2K3.3

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TVS - Diodes

The most common and widely used type of protection device is the Transient Voltage Suppressor (TVS) diode. It is a semiconductor component specifically designed to protect electrical and electronic systems from transient voltage disturbances. It can protect the equipment from overvoltages, electrostatic discharges (ESD), and power discrimination. TVS diodes are also widely used in telecommunications applications where lightning protection is required.

MXLSMBJ2K3.3 Application Field and Working Principle

The MXLSMBJ2K3.3 is a single-line Transient Voltage Suppressor (TVS) diode with a 5kW surge rating for bidirectional protection over the operating temperature range of -55°C to +125°C.

It is designed for use in automotive and integrated modules on communication, automotive, storage and networking systems, consumer, industrial and automotive systems. The TVS diode has an avalanche breakdown voltage of 36V with a reverse leakage current of I_R=20μA . Operating over the temperature range of -55°C to +125°C, it provides a robust cross-point protection against ESD, transients, surges and power discrimination.

The device is designed to minimize its capacitance to reduce device-to-device interference, thus providing robust ESD protection. To achieve this, the diode is designed with two sections: an avalanche diode and an ultra-low reverse leakage field-effect transistor (FET). The avalanche diode protects the device by clamping overvoltage and ESD events. The FET is used to limit the reverse leakage current at high voltages.

When the applied voltage is below the avalanche breakdown voltage, the diode behaves as an open circuit and no current flows through the device. However, at voltages greater than the avalanche breakdown voltage, the diode switches to a low-resistance “on” state and allows current to flow. This switching action temporarily clamps the voltage, limiting its peak value and dissipating the energy associated with the transient or overvoltage.

The MXLSMBJ2K3.3 TVS has a fast response time and can be used in the most rugged environments. It is designed to handle a large surge current while providing protection from overvoltages and Electrostatic Discharges. It is ideal for use in automotive and integrated modules on communication, automotive, storage and networking systems, consumer, industrial and automotive systems. It is RoHS compliant and AEC-Q101 qualified.

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