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B72762A2170S160 application field and working principle

TVS - Varistors, MOVs are important components in the field of electrical engineering. They are designed to protect electronic equipment from the damaging effects of electrical over a two-stages’ surge.

B72762A2170S160 is a type of Varistor, also known as a voltage-dependent resistor (VDR). It is a reliable and robust overvoltage protection device with high peak current capability. This device is mainly used to protect ICs such as TVS diodes, fuses, thyristors, and relays against excessive current or voltage.

The B72762A2170S160 is made of a zinc oxide inert material that is known for its stability and robustness. It features an ultra-low on-resistance, fast response time, low EMI (electromagnetic interference) characteristics, excellent power performance over a wide temperature range, high surge support capability, and no floating. This device is suitable for use in devices such as smart TV, medical equipment, automotive, industrial products, and consumer electronics.

The working principle of the B72762A2170S160 is based on the property of the zinc oxide material. The device is composed of two resistance elements in the one component, an internal core and an external casing. The casing is very thin with a zinc oxide layer coating, while the core layer consists of face to face resistive electrodes. The respective resistance values in the core and the casing act in parallel.

Whenever the device is exposed to a voltage surge, it acts as a resistor, and the core starts to conduct current. This causes the device to increase its resistance proportionally to the voltage. In other words, the device acts as a voltage dependent resistor. In the absence of a voltage surge, the device behaves as an open circuit, and no current flows through it.

The B72762A2170S160 is highly suitable for applications where overvoltage is a common problem. It is especially suitable for field-mounted applications where humidity, temperature, and space are limited. It helps to lower the total cost of operation as it eliminates the need for RMAs (Return Material Authorizations) and warranty replacement. It can also provide significant cost savings over conventional surge protection products.

In summary, the B72762A2170S160 is a reliable and robust overvoltage protection device with high peak current capability. It features an ultra-low on-resistance, fast response time, low EMI characteristics, excellent power performance over a wide temperature range, and high surge support capability. It is suitable for use in devices such as smart TVs, medical equipment, automotive, industrial products, and consumer electronics.

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