B72214S1300K151

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Surge suppressors are important electrical components that protect connected devices or equipment from being damaged by sudden, temporary power surges. The B72214S1300K151 is one example of a surge suppressor, which belongs to the category of TVS (transient voltage suppressor) - varistors, MOVs (metal oxide varistors) - that is designed to protect equipment from surges in excess of 1,000 volts.

A varistor is an electrical component that utilizes a wide range of semiconductor-type materials to provide bi-directional current flow and flow control. It is composed of multiple layers of a semiconductor material, such as zinc oxide or silicon, which is usually die cut from a sheet of the material. Each layer is connected in series and the entire device acts like a variable resistor with adjustable resistance. The resistance of the device is dependent on the current flowing through it, and when a voltage exceeding its rated voltage (or breakdown voltage) is applied, the resistance drops dramatically, allowing a large amount of current to flow through the device. This sudden influx of current is what protects the connected device or equipment from damage that could occur from a power surge.

The B72214S1300K151 is a varistor made of zinc oxide and has a maximum rated voltage of 1,300 volts. It also contains thermistor features that provide additional protection from lightning induced transients. The device has a current rating of up to 20 amperes and is able to handle frequencies of up to 200 kHz.

This varistor is rated for temperatures ranging from -40°C to 85°C, and its temperature coefficient is typically 8%. It is available in several package sizes, including 2018, 2220, 2225, 3325 and 1210, so there is a size suitable for almost any application. It is also compliant with many industry standards, including UL, CSA, VDE and EN, and is RoHS compliant.

One of the major applications for varistors such as the B72214S1300K151 is in surge protectors. It is used in both overvoltage and lightning protection systems, and its thermistor features provide additional protection from lightning induced transients. Moreover, it can be used in other applications such as DC-DC converters, voltage regulators, load protection circuits and motor control circuits. It can also be used in automotive applications, as it is capable of providing surge protection for both 12V and 24V systems.

The B72214S1300K151 is a robust and reliable device, and with its wide operating temperature range and high surge voltage ratings, it is suitable for many applications. Its thermistor features also provide additional protection from lightning induced transients, making it a great choice for applications where lightning protection is required. It is also RoHS compliant, making it a popular choice for many types of applications.

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