V660LA10PX2855

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TVS devices are used to protect sensitive circuits against transient overvoltage spikes. Varistors, MOVs, or Transient Voltage Suppressors, are one of the most common components used in this function. The V660LA10PX2855 is a varistor designed for such use, and this article discusses its application field and working principle in detail.

The V660LA10PX2855 is a multi-layer varistor designed for use in Extremely Low Voltage (ELV) and High Voltage (HV) High Frequency (HF) applications. It is designed to operate on the 10kV level and is certified to IEC 61643-11, which is a standard for protection of outdoor electronics. The varistor also has a wide operating temperature range of -40°C to +125°C. To further reduce the temperature dependence, the device features temperature dependent capacitance.

The V660LA10PX2855 is usually installed in order to protect RF systems, ultra-small cells, outdoor telecom installations and high-voltage DC cables from transient overvoltage spikes. This is accomplished using a reverse biased diode-like behavior of the varistor, which rapidly clamps a transient spike to a more bearable level. The varistor\'s special structure consists of a sintered body of metal oxide particles held together by a matrix of a fusible solid, such as silica or aluminum oxide.

When a transient overvoltage occurs, the current flow through the body of the varistor causes the metal oxide particles to become positively charged. This creates an internal electric field inside the body of the varistor that conducts electrons, which allows the varistor to act as a reverse-biased diode and clamp the overvoltage to a tolerable level. The V660LA10PX2855 is able to absorb and dissipate up to 10kV of transient energy without special protection measures.

In addition to its primary protective function, the varistor also helps reduce the levels of electromagnetic interference (EMI) in the system, especially at higher frequencies. The varistor\'s high capacitance allows it to act as a filter, absorbing and dissipating EMI before it can affect the system. It also offers protection against lightning strikes, as well as other external disruptive currents.

The V660LA10PX2855 is a highly reliable varistor designed to protect both low and high voltage systems from transient overvoltage. Its ability to protect against lightning strikes, EMI filtering, and its wide operating temperature make it an ideal choice for a variety of applications. Its ability to clamp voltages to a safer level without special protection measures makes it a cost-effective solution as well.

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