0071.1521.B1

TVS - Varistors, MOVs are widely used in surge protective circuits to help protect electronic components from sudden and catastrophic surges resulting from lightning strikes and other sources of electrical noise. The 0071.1521.B1 is a type of varistor, also known as a metal oxide varistor (MOV). It is a supressor diode made up of a ceramic body with two or more metal electrodes placed on each end.

The 0071.1521.B1 is a three-terminal device that offers protection from transient overvoltage spikes. The terminals of the device are labeled V1, V2, and A. V1 and V2 are the two voltage sensing electrodes while A is the common ground electrode. The difference between the two voltage sensing electrodes determines the state of the varistor and the current it will allow. When the two electrodes indicate a positive voltage differential, they are said to be "on", allowing current to flow through the device. Conversely, when the two electrodes indicate a negative voltage differential, they are said to be "off", blocking current from flowing through the device.

The working principle of the 0071.1521.B1 varistor is that it acts as a semiconductor switch between the two voltage sensing electrodes. As a semiconductor switch, it has a very low impedance when it is "on" and a very high impedance when it is "off". Depending on the voltage difference of the two electrodes, the state of the switch is determined. Once a predetermined voltage is reached, the switch is said to be "on" and current is allowed to freely flow through the device. Conversely, when the predetermined voltage is not reached or falls below a certain level, the switch is said to be "off" and current cannot flow, protecting the circuitry from surges.

The 0071.1521.B1 can be used in applications ranging from consumer electronics to industrial machines. It is popular in consumer electronics because it provides protection from sudden voltage spikes, which can damage sensitive components. The 0071.1521.B1 is also used in a variety of industrial applications due to its ability to withstand high power surges. In industrial applications, it can be used to protect electrical circuits from power fluctuations from external sources, as well as to provide circuit isolation from disturbances generated by other components. Additionally, the 0071.1521.B1 can be used to internally protect circuits from faults or short circuits.

In summary, the 0071.1521.B1 varistor is a three-terminal device designed to protect electronic components from transient overvoltage spikes. It is a type of semiconductor switch that has a very low impedance when it is "on" and a very high impedance when it is "off". Its applications range from consumer electronics to industrial machines and it is particularly effective at providing protection from power fluctuations and faults.