B72210S0200K151

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TVS – Varistors, MOVs are some commonly used electronic components. They are usually connected to a device\'s power supply as protection against voltage spikes or surges. B72210S0200K151 is a type of Varistor or MOV with long term service life. It is suitable for equipment such as TV set, charger, power switch and electric lamp, etc.

B72210S0200K151 is a two-lead axial-leaded and radial-leaded Varistor with a capacitance of 2pF to 1A, voltage rating of 200V, and energy rating of 2J. Although these specifications appear intimidating at first glance, they are easy to understand when broken down. The following is the explanation of this type of Varistor\'s application field and working principle.

Application Field

B72210S0200K151 Varistor is used to protect the power supply of various electrical appliances from voltage spikes and surges. Examples of such appliances include TVs, power switches, chargers and electric lamps.When placed in series with the device\'s power supply, the Varistor acts to limit the voltage to a predetermined level. It does this by short-circuiting any sudden volts above the rated voltage that enters the device, redirecting it away from sensitive components and protecting them from damage.

Working Principle

The working principle for B72210S0200K151 Varistor is based on the concept of nonlinear resistivity. This principle works by changing the resistance of the component depending on the voltage applied to it. When the voltage is below a certain level, the resistance is high and acts as an open circuit, meaning current cannot flow. However, when the voltage exceeds the rated value, the resistance drops and acts like a short circuit, allowing a large current to flow. This sudden increase in current neutralizes the voltage, bringing it back to the rated value.

The capacitance of the Varistor also plays a role in this process. It allows the component to act as a filter, reducing noise and protecting sensitive components from any high-frequency interference.

The B72210S0200K151 Varistor is a reliable and resilient component and can work in various voltage and temperature ranges. It features high current carrying capacity and will operate well up to temperatures of 105°C. Its short-term overload capability also ensures that it will be able to handle the surges that occur during the device\'s operation.

In summary, this Varistor is ideal for protecting the power supply of various electronic appliances from spikes and surges. Its capacitance allows it to reduce noise and filter out high-frequency interference. The low temperature coefficient and current capacity further enhance its performance. Finally, its minimum shadowing capability helps to extend its service life.

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