V130LU1PX2855

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A varistor is a general-purpose, non-linear, two-winding component that operates over a wide range of frequencies and ac ross a broad range of impedances. Varistors are designed to protect circuits from overvoltage transients, such as lightning strikes, power surges or electrostatic discharges. The V130LU1PX2855 is an example of a varistor.

Application Field

The V130LU1PX2855 varistor is mainly used for overvoltage protection on AC power lines, and has an operating voltage of 220V. It is widely used in audio equipment, automotive electronics, household appliances, medical equipment, communications equipment, power supplies, and HVAC systems. The varistor’s rated maximum absorbing power is 0.24W, and its fast-response time makes it a highly effective component for protecting against overvoltage.

Working Principle

The V130LU1PX2855 varistor works by shunting the excessive voltage or current around the protected circuit when the protection threshold is exceeded. When an AC voltage is applied to the varistor, it responds in a non-linear fashion by creating a voltage-dependent impedance. The varistor absorbs the excess energy and dissipates it as heat, thus protecting the circuit from damage. The dissipated energy is proportional to the value of the applied voltage.

When choosing a varistor for a specific application, the user must be sure to select a device with an appropriate voltage rating for the application. The V130LU1PX2855 is rated for 220V, and would provide excellent protection for such circuits. The device also has excellent heat dissipation capabilities, allowing it to be used in applications with a high pulse repetition rate.

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