SMAJ220C

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SMAJ220C is a type of 2-terminal axial-leaded transient voltage suppressors (TVSs) made of silicon, which can clamp and absorb transient surges from transients in the data communication sets. It belongs to the TVS-Diodes family.

Its application fields can be broadly divided into three categories. The first one consists of automotive industry and military applications, such as protection against transient surges in automotive electronics controllers, sensors, wireless communication modules, data acquisition systems, and other military electronic systems. The second one is in the area of telecommunications and data communications, in which various electronic systems require transient protection against inductive- or capacitive-coupled interface transients. The last one is the consumer products, which need protection from electrical transients and static electricity.

SMAJ220C is an sensitive voltage protector, designed with a two-stage architecture, allowing for maximum protection compared to other types of TVSs. It is reverse-polarity protected and has a built-in electrostatic discharge protection for the most sensitive signals. The two-stage protector has an electrostatic discharge (ESD) protection stage with a low voltage clamping, as well as a surge protection stage that will clamp to a higher voltage.

The working principle of the SMAJ220C is that it can detect very small voltage peaks within the protected circuit and immediately sends out a transient protection signal. When the transient voltage exceeds a pre-defined level, the protector responds by conducting a protective current to reduce or clamp the voltage. This protector can tolerate high inrush currents and very high transient voltage, so that the protected circuit is not damaged. Additionally, it is excellent at clamping the voltage in a timely fashion, so that the spike or surge is not propagated back to the source of the surge, thus protecting other unprotected connected electronics.

SMAJ220C is an ideal choice for protecting circuits from transient overvoltages. Its two-stage architecture offers maximum protection and it is precisely designed to protect sensitive electronic components from ESD, inductive or capacitive-coupled transients, and static electricity. In summary, the SMAJ220C is a highly effective and efficient transient voltage suppressor with sufficient capability to protect sensitive circuits from potentially damaging overvoltages.

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