SL22 2R018

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Inrush current limiters (ICLs) play a major role in protecting electrical equipment and server applications from high inrush current. An ICL is a device which prevents unpredicted and dangerous high inrush current from occurring during the startup or restart of electronic equipment. It is typically used in large applications such as industrial machinery, electrical grids, and electric vehicles. By limiting the current that flows during operations, ICLs protect other electrically connected components from being damaged or becoming nonfunctional due to power spikes. The SL22 2R018 application field and working principle of an ICL involve an electronic circuit comprised of either electromechanical or a resistor-capacitor (RC) network, which limits or throttles the inrush current when electrical equipment is powered on. More specifically, the SL22 2R018 contains a temperature sensitive bimetallic element which bonds two metal surfaces. This creates a direct connection between the two metal contacts when the temperature of the bimetallic element reaches a certain level. The SL22 2R018 is rated at 16A, making it suitable for high inrush applications. To further explain the SL22 2R018 ICL’s mode of operation, the bimetallic element comprises two different metals bonded together with a thermally conductive adhesive material. When power is applied, the temperature of the bimetallic element rises, and this induces mechanical bending. This in turn causes the two metal surfaces to come into direct contact, creating a low-resistance path for the current. As the current through the bimetallic element rises and the temperature increases, the mechanical forces overcome the adhesive forces bonding the two metals together. This causes the two surfaces to separate, thus reducing the path for the current and limiting the inrush current.

Inrush current limiters are commonly used in DC-DC converters and isolated power supplies due to their ability to protect against high inrush current. The SL22 2R018 ICL works by limiting the surge current that occurs at the start of an application. In doing so, it prevents the damaging effects of an overcurrent. It also helps reduce power losses caused by the high inrush current. The SL22 2R018 is also able to increase the life of equipment due to its temperature sensing capabilities.

The SL22 2R018 ICL is also suitable for AC-DC applications, as it is designed to provide protection from overcurrent which can occur during the peak voltage cycle. Additionally, the SL22 2R018 is capable of handling up to 750V of operating voltage, and is resistant to the negative effects of millisecond peak current pulses.

In conclusion, the SL22 2R018 ICL is a reliable device that is designed to protect DC-DC converters and isolated power supplies from high inrush currents that can cause significant damage to electronic components. It is ideal for applications where protection from overcurrent is needed, such as those found in industrial machinery, electrical grids, and electric vehicles. The SL22 2R018 ICL is rated at 16A and is capable of handling up to 750V of operating voltage. Furthermore, the SL22 2R018 ICL utilizes a temperature sensitive bimetallic element to limit the surge current during the start of an application.

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