VE1812K401R050

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The VE1812K401R050 is a varistor of the surface-mounted, multi-layer variety. It is designed to protect sensitive electronic components from transient overvoltages, commonly known as ‘spikes’. It can be used in a wide variety of applications thanks to its surge current handling ability and compact size.

A varistor is a form of voltage-dependent resistor and functions in a similar way to a Zener diode. A varistor works by blocking any voltage which rises above a certain level. It does this by providing a low resistance path to ground when it is exposed to a voltage above its clamping voltage, commonly known as breakdown voltage. It ensures that any voltages which exceed the designated clamping voltage are immediately diverted to ground, thereby reducing the risk of component damage and creating a safe operating environment.

The VE1812K401R050 is a form of multi-layer varistor (MLV). It comprises of two discs held together by a metal spacer, each layer consisting of fine zinc oxide granules ceramiced together by an epoxy resin. This makes it compact enough to be surface mounted and is specially designed for applications where PCB space is at a premium. It has a peak pulse current (Ipp) ranging from 800A to 1000A, a capacitance of 140pF, and a nominal clamping voltage ranging from 18V to 22V.

The VE1812K401R050 is an ideal device for protecting sensitive electronic components from transient overvoltages. It can be used in a wide range of applications, from consumer electronics to automotive and industrial applications, providing circuit protection from surges, transients and ESD events. The VE1812K401R050 also offers additional benefits thanks to its low capacitance, which helps to minimize noise and reduce signal distortion in high frequency applications.

The VE1812K401R050 is also an economical choice as it is easy to install and requires minimal space on circuit boards. It is quick and easy to solder and is also compatible with automated placement equipment. The VE1812K401R050 comes in a RoHS compliant package, making it suitable for the majority of applications.

In conclusion, the VE1812K401R050 is a versatile and reliable varistor which can be used to protect sensitive electronic components from transient overvoltages. It is ideal for applications where size and cost are important considerations and is compatible with both manual and automated placement equipment. Its low capacitance also ensures that high frequency applications are not compromised by signal distortion.

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