2818083

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The 2818083 application field and working principles can be classified under TVS - Varistors, MOVs. A transient voltage suppressor (TVS) detects excess voltage, diverts it away from sensitive components, and dissipates it as heat. A metal-oxide varistor (MOV) is one type of transient voltage suppressor that works similarly, but differs in the materials used tomake them and how they are designed.

Varistors

Varistors, or Voltage Variable Resistors, are composed of a sintered mass of ceramic and metal particles absorbed in a silicone bind. A varistor is designed to provide effective protection in the presence of large transients or fast, high-energy surges, while providing a very low resistance when normal operating voltage is present. Varistors have a non-linear, symmetrical V/I curve that’s heavily biased towards conductivity at normal operating voltages, but provides a high resistance path to transient spikes.

Varistors, like the 2818083, can offer a wide range of competitive advantages, most notably, theirability to absorb large capacity surges and their very low leakage current levels. In terms of TVS, varistors provide the lowest capacitance and can achieve surge ratings of up to 4.5KV. They can also handle multiple surges without performance degradation, and have excellent clamping performance.

MOVs

MOVs, or Metal Oxide Varistors, are constructed using metal oxide semiconductor technology. MOVs control the current within a device by sensing a voltage surge and diverting excess current away from the device. In other words, MOVs “clamp” voltage surges, protecting a device from excessive voltages. Like varistors, MOVs have a symmetrical non-linear V/I curve, which allows them to offer protection from both positive and negative transients, providing performance that varistors cannot match. MOVs are the most commonly used device for transient voltage suppression.

MOVs, like the 2818083, are designed to provide superior protection from large voltage transients and are very reliable and durable for a long life; they are capable of handling high energy transients up to 6KV, and because of their low leakage current they can offer excellent energy saving performance. Moreover, they provide excellent clamping performance and are the most popular form of transient voltage suppression.

Conclusion

The 2818083 application field and working principles can be classified under TVS - Varistors, MOVs. Varistors and MOVs offer different performance benefits depending on the application, making it easy to select the best device to suit a particular application. Varistors are best suited for low capacitance and higher surge voltage protection, whereas MOVs are most suited for highcapacitance and low leakage current protection. Both devices can be used in cinema, networks, and security systems where transient voltage suppression is paramount.

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