V140LS20CP

V140LS20CP is a varistor with working voltage of 140V peak-to-peak and surge current of 20A that could meet the UL1449 4th and IEC61643-11 specifications. It belongs to the class of TVS - Varistors, MOVs (transient voltage suppressor, metal oxide varistor) and is ideal for surge protection applications, such as personal computers, household appliances, telecom system, industrial control systems and more.

Application Field

As an overvoltage protection device, V140LS20CP is suitable for the protection of DC circuits, such as smart phones, personal computers, industrial control systems, telecom systems, household appliances, car accessories, automotive computer boards and other components. It is also suitable for protection circuits of digital, audio/video, lightning and other general purpose applications.

Work Principle

The varistor V140LS20CP is designed with a zinc oxide (ZnO) as the main body, with a layer of silver, copper or aluminum-nickel alloy on both ends as contact layers, one layer of silver or copper as a cladding layer, and an insulating film. When the circuit is in a normal working state, the varistor V140LS20CP acts like an open circuit, and when encountering a surge, the current changes from DC to AC. The alternation in polarity will cause the ZnO to respond and act as a voltage-dependent resistor, where its resistance is in linear relation to the voltage. Therefore, the higher the voltage, the more current it can absorb, ensuring the surge protection of the equipment.

Advantages

• V140LS20CP has excellent electrical performance, including damping peak voltage, impulse voltage and surge current.
• With a compact structure, V140LS20CP has good noise damping performance without interfering with normal current conduction.
• The product features superior clamping withstanding voltaage and surge energy capability, low leakage current, and low capacitance.
• It is made with an environment-friendly component, and is RoHS compliant.

V140LS20CP varistor can effectively protect equipment from surge, spike, EFT and lightning strike, making it ideal for surge protection applications in telecom system, personal computers, household appliances, industrial control systems and more.