V321CA32

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A Varistor, also known as a voltage-dependent resistor (VDR), is a two-terminal solid-state electrical component with a highly nonlinear current–voltage characteristic. Varistors that are designed for more general purpose applications such as lightning protection can be considered as ‘surge protectors’, as they prevent voltage spikes from reaching electronic equipment. Varistors are also known as Metal-oxide Varistors (MOVs).

V321CA32 is one of the commonly used Varistors. The V321CA32 is a MOV with a round body type and is suitable for use in circuit boards and power lines. It has a capacitance of up to 320Vdc, which makes it suitable for use in a variety of application fields. The most common applications for the V321CA32 include lighting protection, surge current protection, overvoltage protection, and electromagnetic interference (EMI) protection.

The V321CA32 is a varistor that works by providing an extremely low resistance, ideally an open circuit, until a certain threshold voltage is reached. Once this voltage is exceeded, the impedance of the varistor decreases significantly, normally from 104-106 ohm. As a result, current starts to flow through the resistor. The current then dissipates as thermal energy, thereby protecting the circuit from excessive voltage.

The V321CA32 has a breakdown voltage of 320Vdc, with a 5% tolerance, and a capacitance of 4.7pF at 1KVrms. It also has a high surge current capability of 900A @ 8/20μs, a clamping voltage of 500Vdc, and a maximum AC voltage of 760V (850Vdc). The V321CA32 has a capacitance of up to 25pF at 1KVrms, which means it is suitable for use in EMI protection. It is also designed to be UL 94V-0 approved for flammability and is RoHS compliant.

In conclusion, the V321CA32 Varistor is an efficient surge protection device with a breakdown voltage of 320Vdc. It is suitable for use in multiple applications, such as surge current protection, lighting protection, overvoltage protection, and EMI protection. It has a capacitance of up to 25pF and a high surge current capability of 900A @ 8/20μs, with a clamping voltage of 500Vdc and a maximum AC voltage of 760V (850Vdc). The V321CA32 is also UL 94V-0 approved and RoHS compliant.

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