V385LA20CPX2855

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TVS - Varistors, MOVs are important components in the field of power electronics, and V385LA20CPX2855 is no exception. It is ultra-miniature, surface mount lightning and surge protection devices that feature high multilayer chips, low inductance construction, and high peak current up to 20 A (8 x 20 us). This makes them suitable for automotive and industrial applications.

V385LA20CPX2855 varistors are designed to protect circuit devices from electrostatic discharge (ESD) and power surges by dissipating the energy of the surge to the ground. When exposed to a surge of sufficient magnitude, the device will limit the applied surge voltage and discharge the energy to the protector shell. Its peak current capacity of up to 20 A eliminates the need for extra energy-consuming fixtures, which could result in significant design savings.

The working principle of the V385LA20CPX2855 is that it is an ultra-miniature surface mount protection device. It features two interwoven layers of semiconductor material made from polysilicon, an alloy of silicon and a conductive metal such as copper or nickel. These two layers act as series-connected devices, and they\'re strategically shielded from each other by a passivating layer of insulating material that acts as a termination barrier.

The protective device also features an integrated polymer PTC (Positive Temperature Coefficient) element to ensure a rapid response and to reduce the impact of high-level current surges on the integrity of the device. When the voltage across the PTC element exceeds the rated value, the device will thermally trip and open, preventing the surges from damaging the circuit.

The V385LA20CPX2855 also features a multilayer construction that minimizes the effects of EMI (Electromagnetic Interference). This, in turn, helps reduce the amount of electrical noise that may be caused by high-level currents in the circuit.

In addition, the device has an internal voltage-measuring circuit that prevents it from dissipating too much energy and allows for custom surge limits (for example, 3, 9, 12V). This added layer of protection further ensures that the device will not cause damage to the circuit due to excessive energy dissipation.

With its high peak current capacity and fast response time, the V385LA20CPX2855 is an excellent choice for automotive and industrial applications. Its low inductance construction, multilayer construction, and integrated PTC element provide enhanced protection against both EMI/RFI and power surges, making it a reliable choice for circuit protection.

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