90065-019

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TVS - Varistors, MOVs are specialized electronic components that protect sensitive circuitry from damage due to excess voltage and/or current by diverting, or discharging, the excess energy. 90065-019 is a special category of these components, and it\'s application field and working principle are as discussed below.

Application Field

90065-019 is a type of Dual Suppressor used in audio/visual communications circuits, automotive circuits, and power supplies. It also acts as a Surge Protector and is designed to protect sensitive components from surge voltages in power supply circuits. By attenuating the surge energy that persists in the power supply, 90065-019 prevents excessive amounts of current from entering the circuit, thus avoiding potential damage. In addition, it also prevents the communication port from being damaged due to strong electrical static (ESD) and other electrostatic discharges.

Working Principle

90065-019 functions due to its ability to dissipate energy when a surge voltage appears. The 90065-019 is comprised of two metal-oxide varistors (MOVs) connected in series. The MOVs feature internal resistance, and when surge voltage appears, the UNI solves the difference in potential between the two sides of the voltage network. When the voltage voltage rises higher than the MOVs breakdown voltage, current flows from the higher potential side to the lower potential side, thus dissipating the surge energy.

Once the surge current is over, the MOVs return to their normal state and dissipate the remaining energy. It is therefore, important to select the right breakdown voltage for the MOVs in order to its reaction time in relation to the expected surge voltage.

The two MOVs connected in series are then connected to two capacitors, which are configured to act like a low pass filter. This allows the device to absorb and dissipate high frequency spikes which can not be attenuated by the MOVs alone. It is this combination of MOVs and capacitors which makes 90065-019 an effective surge protection device.

In summary, 90065-019 is a specialized Dual Suppressor and Surge Protector designed to protect sensitive components from disaster caused by sudden surge voltage or current. It utilizes the metal-oxide varistors for first level protection, and low pass filters for additional protection. It is thus a reliable and cost effective way to protect your equipment from damages due to surge voltage.

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