B72214S0171K101

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TVS (Transient Voltage Suppressor) devices are widely used in electronic systems to protect electrical components from damaging voltage fluctuations, as sudden over-voltage transients can cause equipment breakdowns. Varistors, MOVs, or other types of suppressors can be used as part of TVS protection systems. The B72214S0171K101 is a MOV (Metal Oxide Varistor) that can be used for over-voltage and transient voltage protection. In this article, we will discuss the B72214S0171K101’s application field and working principle.

Application Field of B72214S0171K101

The B72214S0171K101 is designed for general-purpose over-voltage protection in a wide variety of applications. It can be used to protect electrical components connected to AC power sources such as general home appliances, motor drives, medical equipment, lighting, industrial electronics, UPS systems, and many other types of equipment.

The B72214S0171K101 has a high peak pulse power rating of 271kW, a peak pulse current of 42A, and an operating current rating of 2A. The device is designed to protect against voltage transient spike up to 1800V (withstand voltage of 2400V) without tripping false alarms. This makes it an ideal choice for most over-voltage protection applications.

Working Principle of B72214S0171K101

MOVs (Metal Oxide Varistors), such as the B72214S0171K101, are voltage-dependent resistors. This means that their resistance changes with the applied voltage. The B72214S0171K101 contains Sintered Zinc Oxide as the nonlinear element, which exhibits a decreasing resistance characteristic when a voltage is applied across it.

The MOV starts out with a relatively high resistance. As the applied voltage increases, the MOV’s resistance decreases until it reaches a point where it almost completely shorts out the applied voltage. The MOV then acts as a clamp, limiting the voltage across the protected component. This reduces the current flowing through the protected component, thus protecting it from over-voltage damage.

MOVs can also provide temporary protection against transient over-voltages. When a transient voltage spike is applied, the MOV quickly reacts to reduce the current flow though it, thereby keeping the voltage across the protected component at safe levels. It then slowly recovers and goes back to its original state.

The B72214S0171K101 is a typical MOV that can be used to protect electrical components against sudden over-voltages and transients. Its high peak pulse power rating, peak pulse current, and operating current rating make it suitable for a wide variety of applications.

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