MOV-20D621K

In modern electronic system applications, Transient Voltage Suppressors（TVS），such as MOV-20D621K, are widely used for protecting circuits from electrical surge stress and voltage transients. The MOV-20D621K, a 20V Metal Oxide Varistor, is specially designed for protecting communication lines from overvoltage problems caused by lightning discharges or other electromagnetic waves. And it has the following features: High surge capability, Low leakage current, Fast response time, Moisture and dust resistant.

The structure of MOV-20D621K consists of zinc oxide and other alloys pressed together in a rugged epoxy material, forming the core of the device. A coated exterior prevents the core from environmental hazards, such as moisture and dust. The core is enclosed by two metal terminals that are easy to solder, and the MOV-20D621K is of a disk shape.

MOV-20D621K\'s working mechanism functions on the principle of conduction, whereby excess electrical energy is passed to ground, and the current passes through the device rather than the device being destroyed. When overvoltage occurs, the MOV-20D621K absorbs the energy, passes it on to ground, and thus allows an acceptable and stable voltage to reach the protected circuit. This mechanism is known as electrostatic dispersion, or non-linear conduction.

The application fields of MOV-20D621K includes Telecommunication systems, Signal Processing, Multimedia system, Data Storage system, Computers, Monitoring equipment. All these systems may suffer from problem due to surge or voltage transients, and MOV-20D621K is able to provide the required protection.}

In conclusion, the MOV-20D621K Metal Oxide Varistors provides superior protection for many applications. It operates on the principle of non-linear conduction, allowing current to pass through when the input voltage surpasses the rated voltage. This current is passed on to the ground, and the protected circuit remains stable. As the MOV-20D621K is dust and moisture resistant, it is suitable for both outdoor and indoor systems. Additionally, the device\'s ease of installation makes it a favorable solution for many applications.