PV275K3225T Circuit Protection

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A TVS (Transient Voltage Suppressor) is a device used to protect sensitive electronic components and circuits from transient voltages, which can be caused by electrostatic discharge (ESD), lightning, or other high-voltage events. In the TVS family of components, Varistors, or MOVs (Metal Oxide Varistors), represent a type of TVS that is used for protecting against voltage spikes. The PV275K3225T is a type of MOV designed to offer protection for sensitive electronic equipment in a wide range of applications.

The PV275K3225T is an electromechanical device that is designed to absorb energy by clamping transients. The MOV acts as a low impedance path for surges, clamping them to a predetermined voltage level. The PV275K3225T is specified for a maximum clamping voltage of 275V and a maximum conducting current of 32.5A. The MOV is designed for use in a wide variety of applications, including telecommunications, consumer electronics, data communications, automotive, industrial automation and control, and medical electronics.

The PV275K3225T is constructed using an MOV array, varistor element, and thermal-protective element, protected by a high-temperature epoxy coating in a cylindrical package form. When AC power is applied to the MOV, the metal-oxide element responds by generating an electric field, which, when the voltage reaches the maximum clamping level, will become saturated and will no longer be able to absorb energy. The thermal protective element in the MOV will then automatically shut down the MOV, preventing damage due to excessive heating.

The PV275K3225T is designed to provide protection against both ESD and overvoltage spikes to sensitive electronic equipment. It is capable of withstanding multiple ESD events of up to 15kV (human body model) with no damage to the device. In addition, its low series inductance ensures that the performance of the MOV is not affected by high speed switching, allowing it to keep a sharp exponential clamping curve.

The sliding surge current rating of the PV275K3225T has a peak current rating of 32.5A and a typical time-to-peak of less than 10 microseconds. Its quick response time ensures that the MOV can respond faster than the source of the transient allowing for better protection of components. The device also offers a wide temperature range, operating from -40°C to 85°C, to accommodate a variety of applications and environmental conditions.

In conclusion, thePV275K3225T is a MOV designed to offer transient protection for sensitive electronic components and circuits. It is constructed using an MOV array, varistor element, and thermal protective element to ensure reliable protection against ESD, lightning, and other high-voltage events. Its low series inductance, high surge current rating, and wide temperature range make it ideal for use in a variety of applications including telecommunications, consumer electronics, automotive, industrial automation and control, and medical electronics.

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