SL22 10008-B

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Inrush Current Limiters (ICL): SL22 10008-B Application Field and Working Principle

Inrush current limiters (ICLs) are capacitor-discharge components used to prevent extreme inrush currents from occurring in electrical systems during start-ups or power-up cycles. The extreme inrush currents are usually caused by the large difference between the static and dynamic states of components such as motors and transformers. By limiting the amount of current that can enter the system when power is first applied, inrush current limiters can protect against voltage instability, overloading of components, power outages, hardware damage, and other damaging conditions that can occur when inrush currents occur.

One of the most popular inrush current limiters is the SL22 10008-B. This component is a compact, but highly robust device capable of providing current-limiting protection against up to 10 amperes of inrush current during the power-up cycle. It is designed for use in switching power supplies and other electronic systems that require effective inrush current protection.

The device itself is made of high-temperature epoxy encapsulation material, has an operating temperature range between -40°C and 125°C, and a breakdown voltage of 32V. It is also UL 94V-0 FDA-approved for safe operation in a wide variety of applications.

The SL22 10008-B works by containing an on-board capacitor. When current is first applied, the capacitor charges up, and the surge current is initially limited by the inherent series resistance of the component. As the capacitor charges, it effectively limits the amount of current that can enter the system and helps stabilize the inrush current. This helps protect against system damage due to excessive inrush currents. The SL22 10008-B also has a relatively low series resistance, which allows for shorter inrush current times and faster start-up times.

The SL22 10008-B is a versatile and robust component that can provide effective inrush current protection in a variety of applications. It is a cost-effective solution for protecting against extreme inrush currents, and its simple design makes installation and replacement easy. As a result, it has become a popular choice among designers of power supplies and other power systems.

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