V20E150

Varistor Voltage (Typ):	240V
Package / Case:	Disc 20mm
Mounting Type:	Through Hole
Operating Temperature:	-55°C ~ 85°C (TA)
Capacitance @ Frequency:	1600pF @ 1MHz
Number of Circuits:	1
Energy:	120J
Current - Surge:	10kA
Varistor Voltage (Max):	264V
Series:	UltraMOV™
Varistor Voltage (Min):	216V
Maximum DC Volts:	200V
Maximum AC Volts:	150V
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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V20E150 Application Field and Working Principle

TVS - Varistors, MOVs, are a type of surge protection devices that protect against sudden high voltage spikes. TVS devices are designed to clamp or limit the transient overvoltage and protect the equipment or components connected to it from the damaging effects of overvoltage due to a power surge or other voltage spike. The V20E150 series of TVS devices is a type of bi-directional, symmetrical tri-pole Varistor/MOV device, designed to provide surge protection.The V20E150 Varistor/MOV devices are designed for use in a variety of applications, such as industrial automation, automotive, communications, computer, consumer electronics, medical, military and aerospace, and instrumentation and control systems. It is designed to protect equipment or components from overvoltage due to power surges or other voltage transients. The device has an operating voltage of 150V and a clamping voltage of 200V, and is suitable for suppressing surges with a peak value of up to 250V.The V20E150 Varistor/MOV devices are constructed of ceramic material and have ceramic beads to provide symmetric clamping of the TVS voltage. The bead is designed to have a maximum clamping voltage rating of 200V and an operating voltage rating of 150V. The TVS also has a low clamping leakage current of 0.1mA maximum and a high surge current rating of 20kA (8/20μs) maximum. The structure of V20E150 Varistor/MOV devices consists of a plate-like device which acts as the insulated substrate. Ceramic beads which contains an oxide material with a high dielectric constant are attached on each side of the plate-like device. This arrangement allows for symmetrical clamping of the TVS voltage. The TVS is also designed to connect the negative and positive pole of the voltage source, forming an effective, low-impedance path that helps to protect against voltage transients from both the power supply and from the external environment.The working principle of the V20E150 Varistor/MOV devices is based on voltage clamping. When a voltage transient occurs, the TVS device limits the voltage to the predetermined clamping voltage level, allowing it to protect the circuit from the negative effects of the transient. As the voltage rises, the oxide material in the ceramic beads begins to conduct. This results in the formation of an electric field which is strong enough to attract free electrons from the surrounding environment and thus create a conducting path in the ceramic material. This conducting path helps to limit the flow of current to the clamping voltage level.The V20E150 Varistor/MOV device is a highly reliable surge protection device, providing protection from voltage spikes and surges caused by power transients, lighting strikes, and other environmental agents. Its low clamping voltage and high surge current rating make it suitable for use in a variety of applications and its robust construction ensures long-term reliability and performance. It is important to note that this type of device requires no additional external components for proper operation.

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