VDRS07B040TLE

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VDRS07B040TLE application field and working principle

TVS-Varistors and MOVs are two popular overvoltage protection components employed in the electronic market. Protection of an electronic circuit from overvoltage spikes is essential both on the DC and AC sides to ensure stable operation. The VNX series Varistor from NorComp, Inc. is broken down into two main categories -- VDR and VDS. The VDRs provide isolation for AC side protection, while the VDS offer lower working voltages and are often used in DC-side protection, such as in portable electronics and USB ports.

NorComp’s VDRs series includes the VDR07B040TLE, which is designed to help protect AC circuits that use a voltage of up to 1.25kV. The device is extremely quick to respond to voltage changes and has a maximum allowable operating voltage of 400VAC. It also features a low power dissipation of 2W, and a current rating of 100Amps. Sending short and long duration surge pulses at the device also produces excellent test results.

The VDR07B040TLE is ideal for application fields such as automotive, industrial, and consumer electronics. With these application fields, the device offers overvoltage protection for things such as DC power supply circuits, battery charge and discharge protection, and ports such as USB and ethernet. The VDR07B040TLE is also suitable for various AC lines, such as power supplies, stoves, and medical devices.

At its core, the VDR07B040TLE is a metal oxide varistor, a device that utilizes the material’s electrical properties to protect against overvoltage spike damage to amplifiers. The device is made up of several metals stacked onto each other, such as zinc, cadmium, and antimony, each with different electrical characteristics. When the VDR07B040TLE is placed in a circuit, the metals react to the voltage changes, creating a sort of nonlinear resistance. This causes the device to naturally absorb some of the high voltage, protecting the circuit from damage. The device works in both directions, allowing low voltages through while reducing higher voltage spikes.

In conclusion, the VDR07B040TLE is an ideal varistor for overvoltage protection in a variety of AC and DC applications. With its quick response time and high current rating, the VDR07B040TLE is well-suited for consumer electronics, automotive, and industrial applications, making it a great choice for overvoltage protection. Understanding how its unique metals technology works helps to further appreciate the value of the VDR07B040TLE as an effective and reliable overvoltage protector.

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