B72242L0251K100

Varistors, also known as Variable Resistors, are used in an electronic circuit to protect them from voltage and current surges. There are many different types of varistors, and B72242L0251K100 is one type of them. This type of varistor is specially designed for applications that require low capacitance and high voltage hold-off and current absorbing capability.

B72242L0251K100 is a high power Transil varistor (a particularly common type of varistor). It is made with a ceramics body and has a maximum working voltage of 2500VAC and a maximum peak surge current of 1250A with a 50 milliseconds pulse. It is designed to absorb voltages up to 2kV in less than 1ns and has a maximum pulse discharge current of 5kA. These characteristics make it suitable for use in many applications where high power and high speed voltage absorption is needed.

The B72242L0251K100 works in a simple manner. In its rest state, it acts as an open circuit. When a high voltage is applied, the varistor starts to conduct and dissipates the energy. At the same time, the electrical current passes through the varistor and limits it. The amount of current that can pass through the varistor is inversely proportional to the voltage applied so, as the voltage increases, the current decreases and vice versa. This property makes the B72242L0251K100 suitable for use in applications where high voltage protection is required.

Social as an example, the B72242L0251K100 is often used as a surge protection device for cell phone chargers. In this case, when the input voltage is too high, the varistor will clamp the voltage and protect the connected device from the high voltage. This is done quickly and efficiently, with minimal effect on the performance of the connected device.

The B72242L0251K100 is also used in AC-DC power supply applications. When the AC power source produces an overvoltage, the varistor works in a similar manner as explained before and clamps the voltage to a safe level.

In addition, the B72242L0251K100 is suitable for use in a number of other applications, such as for blowers, motors, relay controls, switches and any other components that operate at higher voltages.

In conclusion, the B72242L0251K100 is a high power Transil varistor with a maximum working voltage of 2500VAC and a maximum peak surge current of 1250A with a 50 milliseconds pulse. It works by clamping the voltage to a safe level when an overvoltage is applied, and is thus suitable for many different applications, such as for cell phone chargers, AC-DC power supplies, blowers, motors, relay controls, switches and any other components that operate at higher voltages.