V56ZA2PX2855

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A varistor is a voltage-dependent, nonlinear, electronic device with a near-universal application potential. Varistors have high capacitance and low current levels which enable them to protect circuits against over-voltage, over-current, and other destructive conditions. The V56ZA2PX2855 is a type of varistor produced by Panjit. This device comes in a standard DO-213AA package and provides a peak power rating of up to 2.6A and a limited transient energy dissipation of up to 0.5J.

Varistors are capable of providing protection from various destructive events in different manner. They absorb either electrical energy or current pulses, thereby limiting the voltage or current strengths. In the case of V56ZA2PX2855, its peak hold current is 28A (at 8/20 uS pulse) and its capacitance value is 50V (at 1KHz). The device has a maximum operating temperature of 140°C and a voltage rating from 5V to 310V.

The working principle of V56ZA2PX2855 varistor is based on nonlinear semiconductor materials such as zinc oxide and silicon carbide. These materials exhibit a high concentration of positively charged holes in their electron structures. When connected in a circuit, the presence of the holes brings about a high capacitance and low current levels which makes it possible for the varistor to act as a voltage-dependent resistor. In the nominally closed state, i.e. no over voltage or current on the Circuit, the holes remain as they are and the varistor exhibits a low capacitance value. On the onset of high voltage or current, the electrons start to flow through the holes, causing the zinc oxide or silicon carbide to become an open circuit. The end result is the diversion or absorption of the destructive energy.

Varistors are most commonly used to protect various types of electronic equipment from spikes and surges. They are also employed to prevent the unintentional grounding of electrical wires, which can cause short circuits. There are some other applications, such as line or arc protection, in which a varistor is utilized. The use of varistors has been rapidly increasing due to their ability to provide effective protection at a relatively low cost.

The V56ZA2PX2855 is a popular device that provides excellent performance and reliability for overvoltage and surge protection in consumer electronics. Its high peak hold current, maximum operating temperature and voltage ratings make it a great choice for residential appliances, security systems, and automotive electronics. The device is also suitable for use in industrial and commercial settings, where the need to safeguard expensive equipment is especially important.

In summary, the V56ZA2PX2855 is a reliable TVS (Transient Voltage Suppressor) device from Panjit that provides excellent overvoltage and surge protection for a wide range of electronic equipment. Its nonlinear, voltage-dependent working principle, and its ability to absorb electrical energy or current make it suitable for different applications such as arc protection and unintentional grounding of electrical wires. It is also relatively low cost compared to other types of varistor, making it an ideal choice for residential and industrial applications alike.

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