MXSMCJ85CAE3 Circuit Protection

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The MXSMCJ85CAE3 is an avalanche diode belonging to the family of TVS diodes. These are diodes that are specifically designed to protect electronic circuits from long duration overvoltage transients, and are the most commonly used transient voltage suppression devices in modern electronic circuits. The main application fields of MXSMCJ85CAE3 TVS diodes include overvoltage protection in automotive and industrial applications, as well as transient protection in telecommunications and consumer electronics.

The working principle of this particular TVS diode begins when an overvoltage transient occurs beyond the breakdown level of the diode. This leads to the generation of avalanche carriers that form a conducting path between the anode and cathode electrodes of the diode. This causes a voltage drop across the diode, thus limiting the magnitude of the overvoltage transient. The diode is then quickly switched off as soon as the transient is over, thereby protecting the circuit from irreversible damage.

To ensure that the MXSMCJ85CAE3 is able to protect the circuit from transient overvoltage, it specifically features surge protection with a peak pulse power dissipation capability of 8.5 kW. It also has a high current capacity, with a maximum allowable current of 5 A and a low clamping voltage of 2.86 V. Coupled with its low capacitance of less than 1pF and its very fast response times of less than 2 ns, this diode is highly effective in providing transient surge protection for sensitive electronic components.

In summary, MXSMCJ85CAE3 TVS diodes are specifically designed to protect circuits against overvoltage transients. The working principle of this diode involves the generation of avalanche carriers in response to an overvoltage transient, thus limiting the magnitude of the transient. The diode is also characterized by its surge protection capability, as well as its fast response time and low capacitance. Such features make the MXSMCJ85CAE3 an ideal choice for providing transient protection for sensitive electronic circuits.

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