SL12 5R002

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Introduction to Inrush Current Limiters (ICL):

Inrush Current Limiters (ICL) are widely used in the modern world as a means of protecting electrical circuits from the potential damage caused by erratic, sudden and excessive current levels on start-up. By governing and limiting the starting current during the energization of transformers, motors and other switching-on electrical components, an ICL acts to control the initial surge of current. The SL12 5R002 is one of the most common ICLs used in modern electrical systems.

Application Field of SL12 5R002:

The SL12 5R002 is suitable for use in wide range of applications, such as in the fields of aerospace, defense, automotive, industrial, and consumer electronics. It is particularly suited for use in medium and high-temperature applications where its inrush current limiting characteristics and bi-directional thermal protection properties become critical. The rated voltage range of protection is from 5V to 900V, with an operating temperature range of -25°C to +125°C.

Working Principle of SL12 5R002:

The SL12 5R002 works on the principle of controlling the inrush current by using a thermistor that acts as a variable resistor. The thermistor is heated when the current is applied, and its resistance gradually decreases in a predictable, linear way to allow the current to flow. The higher the current, the faster the thermistor is heated and the lower its resistance becomes. This results in the SL12 5R002 being able to effectively limit the inrush current to a desired level. In order to prevent over-heating, the SL12 5R002 also features a bi-directional over-temperature protection system that shuts off the power in the event that the temperature exceeds the maximum design temperature.

Advantages of Used SL12 5R002:

The use of the SL12 5R002 has numerous advantages over other types of inrush current limiters, including its high-temperature performance, ability to protect against short-circuit conditions, accuracy in current limiting and the protection options available. The wide operating voltage range of 5V to 900V makes it suitable for numerous applications, and the robust construction also ensures reliability and durability, even under extreme conditions.

Conclusion:

The SL12 5R002 is a powerful and reliable inrush current limiter that provides excellent protection against over-current conditions in a wide range of applications. Its wide operating voltage range and bi-directional thermal protection system make it highly suitable for high-temperature applications, and its accuracy in current limiting enables precise control over the starting current. Overall, it is an excellent choice for applications where reliable current limiting is needed.

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