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TVS - Varistors, MOVs

TVS (transient voltage suppressor) technology has come along way since its inception in the 1950\'s. It was developed to protect circuitry from spikes in voltage, also known as over-voltage surges. The most common TVS technology used today is the varistor, which are usually metal-oxide based and made using a process of sintering – molding a powdered material into a solid shape before firing – to create a ceramic disc.

MGUG060100L4DP Application Field and Working Principle

The MGUG060100L4DP is a low-capacitance surge protection device (SPD) designed for the protection of I/O ports, power and signal lines against electrical transients or spikes. It features a low capacitance of only 6.8pF, which allows for minimal disruption to the signal path it is protecting.

The MGUG060100L4DP is designed to work in a variety of application fields, including communications, automotive, industrial, consumer, and medical applications. It can be used to protect sensitive electronic circuits from large over-voltage surges, like those caused by lightning strikes.

The working principle of the MGUG060100L4DP involves the protection circuitry using a special MOV (metal-oxide varistor) to sense any over-voltage and then divert the energy away from the protected device. The MOV is connected to an isolated oven that acts as a thermal fuse. If the MOV senses a surge, the oven will activate via a built-in bimetal element, causing an interrupt in the MOV\'s current, which will then transfer the excess voltage into a dissipative element that dissipates it as heat.

The MOV works by rapidly diverting excess electrical current away from the protected device into a dissipative element, where the energy is converted to heat. The dissipative element can also be used to provide a ground connection for the MOV, allowing it to effectively bypass incoming spikes based on the size and duration of the spike.

The MGUG060100L4DP is a UL Recognized, RoHS-compliant device, making it a great choice for applications that require safety from over-voltage transients.

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