MP5KE45AE3

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The MP5KE45AE3 is a Uni-directional TVS diode suitable for both surface-mount and through-hole mounting. It has a low capacitance of 4.5pF, making it ideal for filtering out high-frequency signals in Consumer, Industrial and Automotive applications. The MP5KE45AE3 has an operating voltage range of 5.0-45V and a clamping voltage of 60V. The peak non-repetitive surge current rating is 170A and the reverse leakage current is less than 1.0uA.

The MP5KE45AE3 is part of a wide range of TVS diodes, which are designed to protect equipment from over-voltage transients and protect circuits from ESD (electrostatic discharge). The TVS diode is similar to an avalanche diode, but its structure is more complex and it has enhanced characteristics, such as capacitance, peak clamping voltage, and ESD protection.

The TVS diode consists of a p-type and n-type semiconductor region separated by a thin layer. At the junction between the two regions, the p-type material has a positive potential and the n-type material has a negative potential. When a voltage transient occurs, electrons and holes are generated in the thin layer, allowing current to flow. This current is limited by the PN junction, resulting in a “clamping” voltage. The TVS diode can absorb and dissipate a limited amount of energy, which reduces the over-voltage transient.

The TVS diode can also be used for ESD protection, which is important in consumer, industrial, and automotive applications. ESD occurs when electric charge builds up on an object or person and is discharged to an electronic device, causing damage. The TVS diode is connected between the person/object and the electronic device. In this configuration, the diode is used to limit the peak voltage of the discharge. The peak voltage is then “clamped” by the diode, which prevents the device from experiencing excessive voltage.

In summary, the MP5KE45AE3 is a uni-directional TVS diode with an operating voltage of 5.0-45V and a clamping voltage of 60V. It is suitable for applications such as filtering high-frequency signals in consumer, industrial, and automotive applications. It can also be used for ESD protection, as it can limit the peak voltage of the discharge.

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