V47ZA1PX2855

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TVS (Transient Voltage Suppressor) devices are electronic components that are used to provide protection against transients or abnormal electrical stress conditions found in various electrical and electronic systems. Varistors, MOVs (Metal Oxide Varistors) are an important class of these types of protection devices, which are used to limit excessive electrical transients. The V47ZA1PX2855 is one of these types of devices.

The V47ZA1PX2855 is a PTC varistor, which stands for Positive Temperature Coefficient varistor. PTC varistors are one of the two types of varistors, the other being the NTC varistor. Both types of varistors work on the same principle of suppressing transient voltages or surge currents, but with one key difference. NTC varistors act as resistors, meaning that they limit the flow of current through them when the voltage drops, while PTC varistors act as capacitors, meaning that they increase the flow of current through them as the voltage increases.

The V47ZA1PX2855 is a surface-mount device (SMD) that is suitable for use in telecommunications, networking, military, aerospace, automotive, consumer electronics and medical electronics applications. It is designed to provide superior ESD protection, while also offering excellent surge and over-voltage protection in a variety of applications. The device works by suppressing both over-voltage and over-current transients, preventing them from damaging the protected system.

The V47ZA1PX2855 works by utilizing a thermal cut-off mechanism. This device operates by controlling the temperature of the PTC element, which is the core of the device. The device works by detecting surge current flow and then creating a temperature increase due to the Joule heating effect that occurs in the PTC element. This temperature rise increases the device’s resistive value, creating a thermal overload that trips the device’s internal relay and shuts off the power to the protected device.

In addition to providing ESD protection, the V47ZA1PX2855 also offers excellent over-voltage protection due to its high energy absorption capability. When used in over-voltage protection applications, its high energy absorption capability means that it can handle large voltage surges with minimal risk of damage. This makes it an ideal choice for use in applications that require long-term protection against voltage transients.

In conclusion, the V47ZA1PX2855 is an SMD device that is suitable for use in a variety of protection applications. It works by utilizing a thermal cut-off mechanism to provide superior ESD protection as well as over-voltage protection. The device’s high energy absorption capability makes it an ideal choice for applications requiring long-term protection from voltage transients. As such, the V47ZA1PX2855 is a great choice for a variety of protection applications.

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