V150ZC20PX2855

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TVS (Transient Voltage Suppressors), MOVs (Metal Oxide Varistors) and ZCPX2855 devices are used to provide protection against voltage transients generated by an external event. The V150ZC20PX2855 device is a member of this family of transient voltage protection devices. The device is designed to protect DC and AC power systems from overvoltages.

V150ZC20PX2855 is a bidirectional device which includes two back-to-back MOSFETs (Metal Oxide Semiconductor Field Effect Transistors) connected in an antiparallel configuration. These MOSFETs form a voltage-sensitive switch, which interacts with an overvoltage or voltage transient on the input line voltage with an opposite polarity. The device then acts as a high-impedance between input line and output line. It limits the magnitude of the transient voltage and diverts it to a low impedance path, thereby reducing the risk of damage to connected electronic equipment.

Application Field

V150ZC20PX2855 is used in a variety of applications. It is ideal for providing protection against transient voltage spikes in DC and AC power systems. It can also be used in communication networks, automotive electronics, and home appliances. It is also used in surge protection circuits in power supplies and other electronic system components.

The V150ZC20PX2855 is effective in both common and differential mode applications. This makes it suitable for a wide range of applications, from cable-modem protection to industrial control systems. Its high surge handling capability can withstand up to 6,000A (8/20 μs) in pulse surge conditions and up to 800A in sustained constant surge conditions.

Working Principle

The V150ZC20PX2855 utilizes the metal oxide semiconductor field effect transistor (MOSFET) structure to provide bidirectional transient voltage protection. MOSFETs are connected back-to-back, in antiparallel configuration, and are designed to interact with transient voltages on the input line voltage with an opposite polarity. The MOSFETs switch on during transient events, forming a conducting path between the input line and output line. This creates a low impedance path that allows the current of the transient voltage to be diverted away from the protected load and safely dissipated.

The V150ZC20PX2855 also uses an internal zener diode to clamp the transient voltage. The zener diode is connected in series with the MOSFETs and is designed to turn on at a predetermined voltage. When the voltage reaches the zener breakdown voltage, the diode begins conducting current, limiting the voltage and preventing any further increase in voltage.

The device also includes a high frequency noise filter that helps suppress any high frequency noise generated by the transient voltage, which could affect the functioning of other components or systems. This ensures that the system remains unaffected by the transient voltage.

The V150ZC20PX2855 is a versatile device, designed to provide robust protection against transient voltages and noise for a variety of applications. The device effectively reduces power losses associated with transient events, extends system life, and prevents critical components and connected equipment from being damaged by overvoltage.

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