MP5KE85AE3

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TVS diode is a voltage dependent semiconductor device used to protect other semiconductor devices from electrical over-stress. It acts as a two terminal element that clamps the voltage between its two terminals. The main difference between a TVS diode and other types of diodes is its low breakdown voltage, typically from 5V up to 200V. The MP5KE85AE3 is a unidirectional TVS diode, suitable for handling transient voltage peaks that may appear in telecommunication, Ethernet, Fibre Channel, High Speed Data Interfaces, Local Area Networks, and various other electrical and electronic circuits.

The MP5KE85AE3 is designed using a unidirectional structure, which provides maximum protection from high voltage transients in a single direction. The device features an operating range of 5 to 28 Volts with an on-state resistance of less than 0.5 Ohm. Its working voltage capability enables the device to absorb high-energy transients up to 45A peak pulse current. The MP5KE85AE3 has a surge capability of 85A peak pulse power with a typical capacitance of 88pF.

The MP5KE85AE3 is a typical choice for protecting the printed circuit board (PCB) sub-circuits, logic connections, and other sensitive components from voltage transients. Moreover, it is suitable for protecting systems from electrostatic discharge (ESD) and other voltage switching transients. Furthermore, it can also be used for protecting multiple lines such as signal inputs/outputs from lightning and surge events.

The working principle of the device is based on the fact that the current-voltage characteristic of a diode is non-linear; hence when the voltage is increased above a certain threshold value, the current begins to increase exponentially. This is a form of negative feedback and the device is able to protect the component from the transient voltages by responding quickly and clamping the voltage to a safe level. The device is designed to operate in a way that the voltage/current ratio does not exceed a certain level. This ensures that the protected components are not damaged from the excessive current or voltage.

In summary, the MP5KE85AE3 is a unidirectional TVS diode, suitable for protecting components from voltage transients. Its operating range of 5 to 28 Volts enables it to absorb high energy transients and also for handling surge events. The device has a surge capability of 85A peak pulse power with a typical capacitance of 88pF. It is ideal for protecting PCB sub-circuits, logic connections, and other sensitive components.

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