SL10 5R004-B

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Inrush Current Limiters (ICLs) are an important type of protection components used in power supply circuits. They provide a valuable, cost-effective solution to limiting inrush currents in order to protect other components from thermal overload, surge voltage, and other potentially damaging conditions. SL10 5R004-B is an Inrush Current Limiter that should be included in any system employing a linear or switch-mode power supply circuit. This article will explain the application field and working principle of the SL10 5R004-B.

Application Field

The SL10 5R004-B can be used in many applications such as electric motors, power factor correction, gas discharge lamps, capacitors, switching regulators, UPS, welding equipment and battery protections. It is also suitable for circuits with energy storage devices and startup circuits that require high inrush current suppression.

The SL10 5R004-B is rated for power up to 10A and voltage up to 64V. It has an operating temperature range from -40°C to +85°C and is fully compliant with the EU RoHS Directive. The SL10 5R004-B is also available with a variety of optional surge current ratings, making it suitable for a wider range of applications.

Working Principle

The SL10 5R004-B is a semiconductor switch which limits the inrush current by dissipating the surplus energy. The architecture of the SL10 5R004-B is composed of two discrete elements, a normally open switch and a Zero Voltage Switch Over (ZVSO) switching device. When the power supply is turned on, the ZVSO will close the switch and the inrush current is limited. The ZVSO device will open the switch after the current has reached the set limit; then it will stay off until the current drops to a predetermined level.

The SL10 5R004-B also utilizes a thermal protection circuit which ensures that the device does not overheat. The thermal protection function will shut off the switch should the device\'s temperature reach a predetermined level. Once the switch is shut off, it will remain off until the temperature has dropped to a safe level.

To ensure the highest level of performance and reliability, the SL10 5R004-B is tested to both EMC and safety standards. It has been tested and verified to meet both IEC 60950 and EN 55032, as well as UL 1441, providing customers with the assurance of quality and reliability.

Conclusion

The SL10 5R004-B is a reliable and cost-effective solution for limiting inrush currents and protecting other components in power supply circuits. It is well-suited for a variety of application fields and is tested and verified to meet both EMC and safety standards. By taking advantage of the SL10 5R004-B’s features, customers can have confidence that the inrush current of their power supply system is being controlled and that other elements of the system are protected.

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