SMP11-E3/85A

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The TVs - Diodes provide efficient protection of all kinds of electrical and electronic equipment against over-voltages. In this article, we discuss the application field and working principle of the SMP11-E3/85A.

The SMP11-E3/85A is a metal oxide varistor designed for surge protection of power and signal lines. It is used to protect applications in white goods, consumer electronics, industrial and communication systems, automotive and other applications.

One of the main reasons why the SMP11-E3/85A is so popular is due to its compact size. The device measures only 11mm in length, 9mm in width and 4.2mm in height. This makes it perfect for space saving application solutions and, as such, is perfect for high speed, low profile designs.

The device is also designed to provide maximum surge performance while consuming minimal power, and operates over a wide range of temperatures. It is rated for non-repetitive surge currents ranging from 0mA to 5kA, and has an operating temperature of −55°C to +125°C.

The key to the SMP11-E3/85A\'s performance is its working principle. The device works by providing a low resistance path to any incoming transient voltage. The device is able to withstand a large number of transients before it wears out, and it can be reset to its operational state after each incident.

The SMP11-E3/85A uses a special construction technique that creates an isolated pocket between two conducting plates filled with metal oxide varistor (MOV) material. The MOV material is a mixture of zinc oxide particles suspended in a non-conductive liquid.

When a transient voltage surges through the device, the MOV material absorbs the energy, leading to a rapid increase in its temperature. This temporarily raises its resistance and limits the current flow. When the transient voltage drops, the MOV material returns to its normal temperature and its resistance drops to its normal level, allowing for the continued operation of the protected device.

The SMP11-E3/85A provides effective protection against both high energy and low energy surges, and is suitable for a wide range of applications. Its small size, high power rating, wide temperature range, and unique working principle make it an ideal choice for a variety of surge protection needs.

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