MXP5KE85A

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TVS (Transient Voltage Suppression) diodes are a specialized type of diode designed to clamp transient voltage spikes in order to protect sensitive electronics. The MXP5KE85A is a unidirectional version with a maximum stand-off voltage of 8.5V. The standard package size is the SOT-23 type.

Application field
The MXP5KE85A is used to protect sensitive components (such as micro controllers, digital logic, and analog input circuits) from spikes, ESD, and lightning-induced transients. They typically protect either signal or power lines and are perfect for applications in industrial, automotive, medical, and consumer electronics.

Working principle
The MXP5KE85A is a zener diode: under normal conditions (VF max = 8.5V), no current flows. But as soon as a voltage spike appears on the line, the excess energy is absorbed by the MXP5KE85A, triggering a current path that will ground the extra energy. After the current peaks and dies down, the portion of the waveform that exceeds the rated voltage is clamped off. This is all done in a matter of nanoseconds.

Thanks to its small package size, the MXP5KE85A is perfect for applications with tight spacing and low power consumption demands. The device is also designed to withstand repetitive ESD strikes of up to 30kV. On top of that, it has an integrated diode to limit the current drawn from a protection processor, reducing the induced voltage on the signal line.

In conclusion, the MXP5KE85A is a great choice for protecting sensitive electronics from transient voltage spikes. Its small size and low power consumption make it ideal for applications with tight spacing, while its integrated diode ensures minimal current draw. And with its ability to withstand up to 30kV ESD strikes, the MXP5KE85A provides superior protection for sensitive components from a wide variety of transients.

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