V18ZU2PX2855

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V18ZU2PX2855 is an automotive-grade, board-level circuit protection device from EPC - EPCOS, a subsidiary of TDK. It is a multilayer Varistor device that uses four 320V, C0G and X7R multilayer ceramic capacitors to protect against transient overvoltage. This device offers bidirectional overvoltage protection up to 32V, which is ideal for automotive, industrial, and consumer applications. The V18ZU2PX2855 Varistor is constructed using four zinc oxide ceramic layers that are sandwiched together and fitted into a hermetically sealed stainless steel enclosure. The layers are interlaced with a low frequency, non-conductive, dielectric material that helps to provide the device with its high breakdown voltage.

V18ZU2PX2855 Application Field and Working Principle

The V18ZU2PX2855 Varistor is designed to protect electronic circuits from transient overvoltage events. It is typically used in automotive applications where the protection of ECU units, as well as loads and peripherals, is required. V18ZU2PX2855 can also be used in industrial and consumer application, such as air conditioners and elevator systems. The device is capable of absorbing up to 32V of transient energy, and provides excellent protection against transients from any direction of the voltage source.

The working principle of the V18ZU2PX2855 Varistor is based on its multilayer ceramic capacitor (MLCC) construction. The MLCC layers are made from a zinc oxide material, and are interlaced and sandwiched together using a non-conductive dielectric material. This construction provides the varistor with high breakdown voltage, while maintaining a low series inductance and distributed capacitance. These properties allow the V18ZU2PX2855 to quickly absorb any transients that may come from the voltage source. The device also has a low capacitance-to-resistance ratio to ensure good protection in high frequency circuits.

The V18ZU2PX2855 was designed primarily for automotive applications, and it can provide overvoltage protection for the protection of ECU units, as well as for loads and peripherals. The device also has excellent transient absorption capabilities, allowing it to protect against transients from any direction of the voltage source. The V18ZU2PX2855 is an excellent option for automotive applications, as its small size and low capacitance-to-resistance ratio make it an ideal choice for space-constrained circuits.

In conclusion, the V18ZU2PX2855 Varistor is an excellent device for the protection of sensitive circuits from transient overvoltage events. With its multilayer ceramic capacitor construction, the device provides high breakdown voltage and low series inductance, and its low capacitance-to-resistance ratio allows it to protect high frequency circuits. The V18ZU2PX2855 is designed for use in automotive applications, but it can also be used in industrial and consumer applications.

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