B72210S0301K101

Varistor Voltage (Typ):	470V
Package / Case:	Disc 10mm
Mounting Type:	Through Hole
Operating Temperature:	-40°C ~ 105°C (TA)
Capacitance @ Frequency:	200pF @ 1kHz
Number of Circuits:	1
Energy:	47J
Current - Surge:	2.5kA
Varistor Voltage (Max):	517V
Series:	StandarD
Varistor Voltage (Min):	423V
Maximum DC Volts:	385V
Maximum AC Volts:	300V
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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TVS – Varistors, MOVs

The B72210S0301K101 device is a popular type of transient voltage suppressor (TVS). It falls within the larger family of devices called varistors and metal-oxide varistors (MOVs). These components provide protection against electronic components from over-voltage events such as electrostatic discharge, lightning strikes, and high voltage surges. In order to better understand these components and their applications, it is important to understand their basic operating principles.Varistors are electronic components made of two different electrical conductors or semiconductors. When a voltage is applied across these two conductors, the electrical current flows from one conductor to the other. The purpose of a varistor is to provide protection against high voltage transients. It works by providing a low impedance path for current flow, which prevents excess current from flowing through the device and damaging the connected components.Metal-oxide varistors (MOVs) are similar to varistors in terms of structure and function. However, instead of two different electrical conductors, MOVs are made of three: an electrode, an oxide ceramic material, and a metal oxide layer. When a voltage is applied to the MOV, the electrostatic field causes the charge carriers (electrons) to redistribute themselves in such a way that the current flow is reduced. This, in turn, mitigates the impact of an over-voltage event.Both types of devices are designed to protect the connected components from over-voltage events. As such, they are typically used in equipment of all sorts, ranging from consumer electronics to medical devices. Some of the more specific applications of B72210S0301K101 and other varistors and MOVs include: protecting components from static electricity, providing transient protection for power surges and lightning strikes, and providing protection for circuits subject to high-frequency over-voltages such as common-mode noise.The B72210S0301K101 device is a specifically designed MOV. It has an operating voltage of 305V, a maximum voltage of 600V, and a capacitor-like design that dissipates energy differently when compared to more traditional MOVs. This unique design allows it to more effectively handle over-voltage transients, while also providing a low-pass filter to reduce unwanted noise. The device also has a peak pulse current rating of 8.0A and is RoHS compliant.In summary, varistors and MOVs are types of transient voltage suppressors (TVS) that provide protection against high voltage transients. The B72210S0301K101 is a specific type of MOV designed to handle over-voltage transients and reduce unwanted noise. It is typically used in a wide variety of applications, from consumer electronics to medical devices.

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