MXP5KE120A

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MXP5KE120A is a Transient Voltage Suppression (TVS) Diode manufactured by MCC (Micro Commercial Components). It is designed in a two-pin ultra-small SMA, with a peak pulse power of 1100 Watts and a 5 Kilovolt (KV) of stand-off voltage.

TVS Diodes are protective electronic components designed to protect against electrical overstress, lightning, secondary induced transients, interrupt held transients and EOS. TVS Diodes consist of two main elements: a diode and a clamping device.

The MXP5KE120A is a diode fabricated with an active component such as a semiconductor material. This material provides the device with the ability to conduct electrons when the current reaches a certain level. When the current surpasses the maximum safe amount, the diode will conduct further, reducing the amount of voltage or current that can pass through it. The diode then acts as a barrier, protecting the electronics against higher voltages or surges.

The clamping device found in the MXP5KE120A is a metal oxide varistor (MOV). MOVs are made of ceramic discs containing zinc oxide. The discs are designed to connect in parallel, so when current is applied to them, a certain amount of voltage is held across until the current surpasses a safe level. Once this happens, the MOV will allow the extra current to pass and absorb energy by increasing its resistance until the current returns to normal.

MXP5KE120A finds its application mainly in automotive systems, consumer electronics, LED lighting, communication equipment, and power supply designs. It offers great protection against transient and surge events.

When it comes to its working principle, the MXP5KE120A works in the classic breakdown and clamping mechanism. As the input voltage reaches the diode’s breakdown voltage, it will start to conduct in a ‘avalanche breakdown’. Once the current reaches the clamping voltage, the MOV’s resistance will drop and the diode will clamp the excess voltage. This is how the MXP5KE120A protects its circuits and bars excessive current from flowing.

To sum it up, MXP5KE120A is a two-pin ultra-small transient voltage suppression (TVS) diode. It is mainly utilized in automotive systems, consumer electronics, LED lighting, communication equipment, and power supply designs. The diode is made of semiconductor material and an MOV, working together to protect their circuits from overvoltage surges.

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