5KP8.5AHE3/73

TVS (transient voltage suppressor) diodes are a type of surge protection device designed to protect sensitive electronics from overvoltage transients. TVS diodes play an important role in protecting circuits and components from high energy pulses due to lightning strikes or ESD (electrostatic discharge).

5KP8.5AHE3/73 belongs to the 5KP series of TVS diodes which are built with glass-passivated junction chip technology and designed with peak pulse power dissipation ratings from 600W to 5500W. This series of protection devices is designed to protect equipment in industrial, computing and telecom applications against damages due to overvoltage transients.

Application Field

The 5KP8.5AHE3/73 is widely used in industrial applications, in particular AC to DC converters, such as rectifier systems and UPS systems, protect various kinds of load circuits from high energy pulses due to either lightning strikes or electrostatic discharge. Additionally, 5KP8.5AHE3/73 can be used in telecommunication systems and audio-video applications. It is also applicable in the automotive applications as it can protect the in-vehicle electronics and wiring from being damaged by transients from the power source.

Working Principle

The 5KP8.5AHE3/73 operates on the principle of avalanche breakdown; this phenomenon occurs when a large amount of voltage applied to the diode causes the valence electrons of the pn junction to acquire enough energy to break away from their respective atoms, resulting in current flow. As soon as there is a positive or negative spike in voltage, the 5KP8.5AHE3/73 will conduct and dissipate the energy Spike, up to its peak pulse power dissipation rating, while clamping the voltage to a safe level. Thus, the 5KP8.5AHE3/73 eliminates any transients through its power absorption and clamping functions.

In summary, 5KP8.5AHE3/73 is a type of TVS diode which provides surge protection to vehicle, industrial, computing and telecom applications. It dissipates high energy pulses while clamping the voltage spikes to safe levels by operating based on the principle of avalanche breakdown.