B57211P0509M301

Inrush Current Limiters (ICL) are used for a variety of purposes, including protecting circuits from current spikes and surges. B57211P0509M301 is a typical ICL device. It is a polymeric positiver temperature coefficient (PPTC) thermistor, specially designed for inrush current limiting applications. This ICL is controlled by the temperature rise at the device\'s junction, providing reliable inrush current protection in applications that require low resistance short-circuit protection.

Features of B57211P0509M301 ICL

• Compact size and low profile
• Excellent reliability
• High accuracy and repeatability
• High surge current capability
• Wide range of voltage and current options

Application Field

The B57211P0509M301 is used for inrush current limiting applications, settling time reduction and improved power supply efficiency in a variety of different industries and applications, including automotive, aerospace, medical, industrial and consumer. It is applicable in automotive power inrush circuit, power supply, DC motor drive, line and low voltage applications.

Working Principle

The B57211P0509M301 is a device that responds to changes in temperature. When the applied voltage increases, the internal temperature of the device increases. The device reacts by exhibiting increased resistance. This limits the inrush current, providing a controlled and predictable rise in line current. The device automatically relaxes and re-cycles as the line voltage decreases and the temperature stabilizes. The B57211P0509M301 is designed to allow a low resistance, short circuit current while limiting the inrush current to a predetermined level.

Conclusion

The B57211P0509M301 Inrush Current Limiter (ICL) is a reliable device for limiting inrush current in a range of industrial applications. It is designed to allow a low resistance, short circuit current while limiting the inrush current to a predetermined level. Also, it can reduce the power supply settling time and improve efficiency. The B57211P0509M301 is easy to use and can be relied upon to provide reliable and predictable protection against current spikes and surges.