SG316

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Inrush current limiters (ICLs), also known as surge suppressors or surge limiters, are components designed to reduce or limit the electric current surge that occurs when power is first applied to a circuit. SG316 is one of the most common ICLs used today. This article will discuss the application field and working principle of this device.

Application Field

SG316 ICLs are often used in a variety of industries where power is first applied to a circuit, such as power supplies, semiconductor testing, and charging and storage systems. These limiters can help protect sensitive electrical equipment and connected components from power surges and overloads, while providing more stable input power. They are also used in lighting systems to control or limit the current, helping to extend their life span.

Working Principle

The working principle of the SG316 ICL is based on the electricity flow when connected to a circuit for the first time. When the power supply is switched on, a sudden current surge occurs, raising the temperature and putting strain on the equipment. The ICL is designed to immediately limit or reduce this initial current, avoiding damage to the circuit.

The way the ICL works is by utilizing a combination of thermistor and resistive components. The thermistor, which is designed with a specific resistance value, will change states when current flows through it and overheats. The resistive element in the ICL then acts as a resistor that will limit the current for a short period of time until the thermistor cools, allowing the current to return to normal levels. This prevents high inrush currents from damaging the circuit and helps improve its power efficiency.

Conclusion

The SG316 ICL is a highly reliable and efficient device used to limit current surges and overloads in a variety of industries. Its working principle of utilizing the combination of thermistor and resistive components helps reduce inrush currents and increases equipment efficiency. This device can be an invaluable asset when it comes to protecting sensitive electrical equipment and prolonging the life span of the components in the circuit.

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