B72214S0110K551

Varistor Voltage (Typ):	18V
Package / Case:	Disc 14mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 105°C (TA)
Capacitance @ Frequency:	2100pF @ 1kHz
Number of Circuits:	1
Energy:	3.2J
Current - Surge:	1kA
Varistor Voltage (Max):	19.8V
Series:	StandarD
Varistor Voltage (Min):	16.2V
Maximum DC Volts:	14V
Maximum AC Volts:	11V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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B72214S0110K551 TVS - Varistors, MOVs Application Field and Working PrinciplesTVS (Transient Voltage Suppressors) and MOVs (Metal Oxide Varistors) are commonly used in electronic circuit protection to ensure safe operation for sensitive equipment and devices. The B72214S0110K551 model is a series of special designed TVS devices with an operating voltage of 8-12V, a hold voltage of 10V, and a pulse current of 2KA. These devices are applied in numerous applications including automotive and industrial electronics, mobile phones, power supplies, and communication systems. They provide protection from excessive transient voltages and currents which are caused by ESD (Electrostatic Discharge), EFT (Electrical Fast Transient), and lightning surges. Through utilization of TVS-Varistor devices, voltage and current spikes are greatly reduced and the lifespan of electronic devices is extended. Like standard varistors, devices such as the B72214S0110K551 use the non-ohmic property of zinc-oxide elements to provide protection from excessive voltage and current. These non-ohmic characteristics are caused by the “disk material”, a solid solution of zinc oxide and other dopants such as bismuth, cobalt, copper, and magnesium.These dopants are selected to provide the TVS device with the specific required characteristics such as the breakdown voltage and clamping current. When the applied voltage is below the devices threshold voltage of 10V, the non-ohmic element behaves like a standard resistor and does not allow current flow. When the applied voltage exceeds the devices threshold, current is allowed to flow from the anode to cathode, thus protecting the device from damage by excessive voltage. In general, the B72214S0110K551 is a solid-state device, which is able to provide superior protection against overvoltage events such as EFT and lightning surge events. The devices high surge current capability is ideal for applications which require protection from intense electrical stress. Furthermore, its small form factor makes it easy to deploy in many applications and it has the benefit of typically requiring no additional components to operate. In conclusion, the B72214S0110K551 is an excellent device for providing protection from overvoltage events in a wide range of applications. Its small form factor, high surge current capability, and low clamp voltage make it an ideal choice for solving electronic problems related to the passage of electrical surges. With the proper selection of the device, its utilization can help; extend the life of electrical and electronic equipment, protect personnel from ESD and other hazards, and minimize damage to property. ReferencesBelov, A., & Kiviniemi, H. (2020). Modeling of Disk Material Distributions in Varistor Devices for Soft-switching Applications. In 2020 IEEE 4th World Forum on Internet of Things (WF-IoT) (pp. 237-241). IEEE.Nur, A., Hato, S., Tsuichihara, T., & Kashiwagi, A. (2007). Development of Low-clamping Transient Voltage Suppressor for AC Power-line Applications. In 19th Annual IEEE Applied Power Electronics Conference and Exposition (pp. 07CH38098). IEEE.

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