MXSMLJ40A/TR Circuit Protection

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Transient voltage suppressor (TVS) diodes provide protection against voltage transients. The MXSMLJ40A/TR is a unidirectional TVS diode used to protect a circuit from transient voltage caused by electrostatic discharge (ESD), electrical fast transients (EFT), and lightning. It has a high current electrostatic discharge (ESD) capability, fast response time, wide operating temperature range and low dynamic resistance.

The MXSMLJ40A/TR is an unidirectional voltage suppressor that works by clamping the voltage across the diode to a defined level when the diode is exposed to a transient voltage of subject magnitude and duration. The clamping voltage level is dependent on the device’s breakdown voltage. The device has a maximum peak pulse power rating of 400 watts, and a maximum peak current rating of 3.5 amps.

The application fields of the MXSMLJ40A/TR include automotive electronics, audio systems, computer systems, communications equipment, telecom systems, as well as consumer appliances. This diode is particularly well suited for environments where the device must withstand high electrostatic discharges. Additionally, it can be used in power supply protection, motor control, and power line transients.

The working principle of the MXSMLJ40A/TR is typical of other TVS diodes, in that it is based on the breakdown voltage of the device. When the transient voltage reaches the breakdown voltage, the diode will clamp the voltage, reducing the peak transient voltage and protecting the device from the overvoltage. This is why the device is capable of dissipating large transient currents, as the voltage is clamped before it can reach a level that may damage the components.

The MXSMLJ40A/TR is a reliable and robust device, with excellent surge characteristics. It is widely used in applications that require protection from transient voltage surges such as electrostatic discharge, electrical fast transients, and lightning. Its wide operating temperature range and fast response time make it an ideal device for protecting sensitive electronics from voltage transients.

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