PRG18BC3R3MM1RB

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PTC Resettable Fuses, also known as polymeric positive temperature coefficient (PPTC) resistors, are designed to protect different electronic devices against overcurrent. PRG18BC3R3MM1RB is one of the PTC resettable fuses and is designed to handle a large range of currents of up to 9 A UL/EN/IEC 61010, making it suitable for use in some of the most common applications including consumer appliances, power tools, automotive, and industrial equipment.

The PRG18BC3R3MM1RB has a one-time-only logic resettable circuit and can be used to protect against overvoltage and overcurrent. It is available in two versions－self-resetting and manual resetting. This PTC resettable fuse has a low internal resistance of 0.08730 ohms at 20°C and a low trip current of 3.3 A. The device also provides good electrical insulation between input and output, allows for a wide temperature range (-40°C to +85°C) when activated, and high transient current up to 13 A. In addition, the PRG18BC3R3MM1RB has an operating voltage of 250 V AC according to UL and EN/IEC standards, and a maximum voltage of 600 V AC according to UL/EN/IEC standards.

The working principle of the PRG18BC3R3MM1RB is quite simple. When current through the device exceeds the maximum stated activation current, the fuse will blow and disconnect the power supply, protecting the device from overcurrents. Generally speaking, the fuse will recover automatically once the overcurrent is removed. If needed, the fuse can be reset manually.

In terms of application fields, PRG18BC3R3MM1RB is mainly used in consumer appliances, power tools, automotive, and industrial equipment. Consumer appliances include electric toys, digital cameras, electric toothbrushes, LED lighting, air conditioners, and other small household appliances, among others. In power tools, PTC resettable fuses are often used as overcurrent protection for motors, battery packs, and charging circuits. Similarly, automotive systems also widely use PTC resettable fuses for their electrical layouts, including power inverters, start-stop systems, and programmable electronic systems. In heavy industries, PRG18BC3R3MM1RB could also be used in combustion control systems, material handling equipment, HVAC systems, and more.

Finally, it’s worth noting that PTC resettable fuses are not only used for overcurrent protection, but also for overvoltage protection and short-circuit protection. Additionally, since PTC resettable fuses are temperature-sensitive, they provide an additional level of protection in the case of an overheating situation. Overall, PRG18BC3R3MM1RB is a dependable and versatile protection fuse, capable of serving a variety of applications in the automotive, industrial, and consumer electronics sectors.

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