SL10 2R505

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Inrush current limiters (ICL), which are also referred to as negative temperature coefficient (NTC) thermistors, are an essential component utilized in electrical device design, particularly to protect and regulate large electrical components in high power applications. They are thermally sensitive resistors that provide over-current protection, and are designed to control the spikes of current through a switch or relay when it is first switched on. The SL10 2R505 is a high power application Inrush Current Limiter (ICL) designed to provide a reliable and efficient method to limit the inrush current in power supply, lighting and industrial applications.

The SL10 2R505 is tough, temperature stable, and easily installable and can be used as an inrush current limiter during the start-up of an oscillator circuit. It is commonly used as a power source in applications including the automotive, communications, consumer electronics, and displays industries. It can be used in applications such as defrost heaters, motor drives, electric motors, solid-state relays, induction heaters, test rigs, inverters, and switching power supplies.

The two main components of the SL10 2R505 are a NTC thermistor and a capacitor. The thermistor is composed of a ceramic material made from nickel oxide and cobalt oxide. It is a temperature-sensitive resistor and its resistance decreases as temperature increases. The capacitor is used to control the amount of current that flows through the thermistor. It functions as a resistor and reduces the current when a voltage is applied to it.

The working principle of the SL10 2R505 is based on the thermistor’s ability to conduct current in a specific temperature range. When the device is switched on, it draws a large current as the capacitor charges. This causes the temperature of the thermistor to increase, reducing its resistance. As the resistance decreases, the current is limited so that the voltage across the thermistor is limited to the rating of the capacitor.

The result is that the device limits the inrush current by limiting the time taken for the capacitor to charge, and then reducing the continuous current to a specified level. This level decreases as the circuit continues to operate, allowing the device to slowly reduce the current to the correct operating level. This maintains a safe and efficient power supply to the load while ensuring that no over-currents are produced as the circuit reaches its correct operating temperature.

The SL10 2R505 is an effective and efficient Inrush Current Limiter designed for use in applications such as power supplies, motors, test rigs, lighting, and industrial and automotive applications. Its sturdy design, temperature range and current limiting capabilities make it an ideal choice for mission-critical electrical and power supply applications.

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