V660LC50AP

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Varistors, also known as voltage dependent resistors (VDRs), are essential components in overvoltage protection. TVS (Transient Voltage Suppressors), MOVs (Metal Oxide Varistors) and other varistors are designed to limit the voltage fluctuations that can occur on power and communication lines in order to protect the circuit from damage. The V660LC50AP is one such varistor – a metal oxide varistor designed to be used in high frequency power line applications.

What is a V660LC50AP?

The V660LC50AP is a high frequency power line varistor rated at 5kA (8/20 μs pulse) with a breakdown limited to 66V. It features a low clamping voltage and an excellent self-healing characteristic. It is designed to fit a standard two-terminal surface mounted casing type (Rad.5 SMD 17.5x5mm) and is compatible with high frequency soldering methods. It has a symmetric temperature coefficient and requires minimal energy for complete discharge.

V660LC50AP Application Field and Working Principle

The V660LC50AP is used in power supply, communication, measurement, and control circuits to protect against overvoltage and transients. It can be used in various applications including automotive, consumer electronics, HVAC, industrial control, and power systems. It works by clamping the voltage when an overvoltage occurs, diverting the extra current and protecting the circuit.

When a transient overvoltage is applied, the varistor draws energy from the capacitance of the terminals and the varistor body. The energy is dissipated as heat by the device due to its low resistance. As the voltage exceeds the breakdown voltage, current begins to flow through the varistor, clamping the voltage and preventing damage to the circuit.

The V660LC50AP features a low self-capacity and minimal energy loss for complete discharge. It also has a symmetric temperature coefficient which ensures uniform performance over the full range of operating temperatures. Additionally, the self-healing effect enables the varistor to heal itself after a surge.

Conclusion

The V660LC50AP is a high frequency power line varistor designed for overvoltage and transient protection applications. It has a low clamping voltage, a symmetric temperature coefficient, and an excellent self-healing characteristic. Its low self-capacity and minimal energy loss for complete discharge make it an ideal choice for power, communication, measurement, and control circuits.

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