V22RA16X2749

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TVS – Varistors, MOVs are devices with varied applications and serve to protect various sensitive electronic equipment from excessive voltage spikes and surges. The V22RA16X2749, specifically, is part of the series of radial leaded disc-shaped metal oxide varistors and is used in a variety of protection applications.

The application fields of the V22RA16X2749 vary depend on its specific special features, such as its maximum clamping voltage, maximum impulse clamping voltage, maximum discharge current, leakage current, capacitance range, and energy each device can absorb. Additionally, each product within the series is resistant to surge voltages up to 1000V and correspondingly, can absorb over 120J of energy. Generally, this metal oxide varistor is suitable for a wide range of consumer applications, such as industrial equipment, LED lighting, consumer goods, appliances, chargers, Security cameras, networking equipment, etc.

The concept of a metal oxide varistor is to use the nonlinear properties of nonlinear semiconductors. In the presence of a low level of current, a high level of resistance is present. Thus, the MOV’s primary function is to serve as an insulating layer to stop overvoltage damage to sensitive components. The V22RA16X2749 in particular, is a radial leaded disc-shaped device that features a nonlinear voltage-current characteristics, like that of MOVs.

The working principle of the V22RA16X2749 is based on the same physical laws that control all metal oxide varistors. As current flows through the device, the resistance of the device decreases exponentially. As voltage increases, the resistance of the device decreases until it is approximately zero at the operating voltage of the device. As the voltage continues to increase beyond the specified cutoff voltage, the device switches into its maximum allowable “clamping voltage”, effectively limiting any further voltage spikes.

The metal-oxide varistor(MOV) is also fabricated using zinc oxide ceramics with added dopant materials like bismuth, cobalt, and manganese. These ceramics with varying dopant concentrations are stacked in a spiral arrangement to form the discs. Each disc is electrically connected in parallel in between two electrical terminals and separated by electrical insulation materials.

The varistor itself serves a dual purpose. First, it allows the device to absorb high voltages and dissipate the energy associated with them as heat. Secondly, the device operates as a voltage clamp, limiting any further voltage surges beyond its specified “clamping voltage”. Thus, the device is highly effective in protecting any connected electronic devices from additional voltage spikes.

The V22RA16X2749, in particular, is highly effective due to its unique combination of features. Its maximum clamping voltage ranges from 160 volts to 410 volts, and it is able to absorb up to 120J of energy in peak surge protection applications. Additionally, its maximum discharge current ranges from 9 Amps to 22 Amps, with a leakage current of 1000µA (1mA).

Overall, the V22RA16X2749 metal oxide varistor is highly effective in a wide range of consumer applications and is extremely effective in protecting sensitive electronic equipment from excessive voltage spikes and surges. Its variety of special features give it an edge in many different protection applications, making it an ideal choice for consumers and manufacturers alike.

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