B72210S2151K101

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TVS- Varistors, MOVs, include components that stabilize excessive voltages for various applications. B72210S2151K101 is a model of TVS- Varistor designed to protect circuits from transient over-voltage conditions. It can be utilized for a variety of applications such as in industrial, military, and consumer-based products.

The B72210S2151K101 TVS-Varistor is a metal oxide varistor (MOV) shaped as a chip. A varistor is a diode-like semiconductor device that has a large change in electrical resistance with a small change in an external electrical field. The B72210S2151K101 features an operating voltage of 500 V AC, and peak pulse power of 630 W, with clamping voltage of 705 V. It can handle a maximum energy of 4.6 joules. The device also has a wide operating temperature range of between -65ᵒC & +150ᵒC, a maximum forward current 1A and downward surge current of 1700 A.

The B72210S2151K101 provides excellent seismic and mechanical protection, reliably controlling over-voltage conditions due to lightning or short-circuit. It offers differential voltage suppression, also known as ‘common-mode’, for robust protection against high-frequency over-voltage events. Additionally, B72210S2151K101 is immune to high energy bursts, environment humidity and temperatures.

The application fields of the B72210S2151K101 includes low- voltage systems such as electronic motor drives, power converters, inverters, surge protection, load safety, and surge motors, AC-DC adaptors, SMPS, CCFL inverters, lightning protection equipment and other pulsed power systems. It also offers additional over-voltage and over-current protection for both the downstream load and the associated circuitry.

The essential working principle of the B72210S2151K101 is by clamping excessive voltage events within approved limits. The varistors act as a ‘short’ just like the fuse or circuit breaker, removing the excessive voltages and currents. The protectant threshold voltage is developed due to certain values of resistance and capacitance; when an over-voltage event occurs, the threshold voltage is exceeded, initiating varistor action. The varistor can then absorb large pulse energies, with both a series resistance and capacitance as bypass paths until the energy is dissipated in the varistor.

In conclusion, the B72210S2151K101 is an excellent choice for over-voltage protection from transient voltages, with its simplified construction, high-dissipation capability and temperature cycling. It is a representable model within TVS- Varistors, MOVs, and provides reliable, cost-effective protection for both commercial and industrial applications.

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