V56ZT8P Circuit Protection

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A varistor (sometimes referred to as a voltage-dependent resistor [VDR] or varicap) is a nonlinear component which is used to protect electronic circuits from over-voltage transients. Varistors are widely used in both commercial and industrial applications for the protection of sensitive electronic components and semi-conductors. Varistors are typically constructed from two different dielectric layers separated by a semiconductor layer. The two dielectric layers act as insulators, while the semiconductor layer acts as a voltage-dependent resistor.

The V56ZT8P is a surface-mount varistor specifically designed for use in telecommunications applications such as line protection circuits and telecom systems. The V56ZT8P is based on a metal–oxide varistor (MOV), which is composed of a circular semiconductor disc sandwiched between two metal plates. The V56ZT8P has a breakdown voltage of 8V, an insulation resistance of 3.3MΩ, and a maximum peak pulse current of 800A. The V56ZT8P has a high response speed and provides excellent protection against high voltage transients.

The working principle of the V56ZT8P is based on the nonlinear current-voltage characteristics of MOVs. When exposed to a high voltage transient, the MOV conducts current in response to the voltage and reduces the voltage across the protected circuit. The V56ZT8P is designed to be mounted directly on a printed circuit board and is UL listed for safety.

The V56ZT8P is suitable for a wide variety of applications, including line protection circuits, telecom systems, motor drives, and electronic assemblies. The V56ZT8P is capable of providing excellent protection against transient over-voltages, making it an ideal choice for high reliability applications. By providing reliable protection against voltage transients, the V56ZT8P helps to prevent premature circuit failure and maximizes system performance and life.

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