1.5SMC20A V6G

1.5SMC20A V6G TVS - Diodes

1.5SMC20A V6G is a type of two-terminal semiconductor bi-directional device used to protect circuits against excessive transient voltages, and it belongs to the family of TVS – Transient Voltage Suppressors (TVSs). It is commonly deployed in telecommunications, computers, electronic systems, and heavy-duty industrial applications.

The most important elements of 1.5SMC20A V6G are the sensitive element, suppression element, and protective element that provide a multi-function device for protection from high voltages and transients. The main elements of 1.5SMC20A V6G are the semiconductor regions UZ2, 2UZ2, the upper protection element, and the lower protection element, which are connected in series or in parallel.

Application Field

1.5SMC20A V6G is used in numerous industries such as automotive, aerospace, telecommunications, commercial, and heavy industrial applications. It helps protect against transient voltages which can cause rapid power loss, unreliable operation of systems and even permanent damage to circuit components. This makes it ideal for applications that are exposed to high-voltage transients or constant high voltage.

1.5SMC20A V6G can be used to provide protection from the following: Over voltage transients, high-energy spikes, electrical noise, surges, and inductive switching.

Working Principle

1.5SMC20A V6G is based on the principle of reverse breakdown or avalanche breakdown. This means that the breakdown voltage of the device is determined by its structure and depends on the dielectric strength of the material used for its construction. When the reverse voltage across the device exceeds its reliable breakdown voltage, an avalanche process occurs which leads to high current clamping.

The additional current provided by the avalanche process helps to limit the peak transient voltage to a safe level, thus preventing damage to the protected circuit. The device also acts as a low impedance path, providing minimal resistance for the transient current to flow, thus allowing the over voltage transient to be limited and dissipated quickly.

1.5SMC20A V6G’s ability to absorb and dissipate large amounts of energy, in a very short time period, make it an essential protection device for numerous industrial applications.