B72214S2321K101

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TVS - Varistors, MOVs

Varistors, or metal-oxide varistors, and MOVs, or MOVs, play an important role in protecting electronic components like circuits and appliances from damaging electrical shocks. The B72214S2321K101 is a TVS (transient voltage suppressor) that is designed for surge protection and ESD (electrostatic discharge) applications and consists of two metal-oxide varistor chips connected in series and mounted in a SOT-23 package. Let\'s take a closer look at the B72214S2321K101, its application field and understanding the working principle.

B72214S2321K101 Application Field

The B72214S2321K101 is designed to protect circuits and components for AC circuits operating at a voltage of up to 120V in conjunction with TVS diode arrays or single line protection devices. The B72214S2321K101 protects against hazards such as ESD, as well as surges and transients such as lightning. This device has an insulation voltage of up to 3.5KV. It is also suitable for telecom equipment, IGBT+freewheel diode protection, high voltage applications, as well as video over coaxial cable.

Understanding the Working Principle

When the B72214S2321K101 is exposed to voltage transients, it can absorb and dissipate large amounts of energy, preventing it from damaging other components in the system. This is accomplished through a process known as avalanche breakdown, which is a unique property of varistors. The two metal oxide varistor chips housed in the SOT-23 package are normally non-conducting; however, when the transient voltage exceeds the varistor\'s breakdown voltage, the varistor chips will become conductive. This sudden change in resistance allows the device to absorb and dissipate the energy, which serves to protect the circuit from any further damage.

The B72214S2321K101 is a TVS device designed for surge protection and ESD applications. Its application field includes AC circuits and telecom equipment, with a insulation voltage of up to 3.5KV. The device works through a process known as avalanche breakdown, where the varistor chips housed in the SOT-23 package become conductive to absorb and dissipate large amounts of energy that would otherwise damage protected components.

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