PRG18BB470MB1RB

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Typically, an over-current condition in an electrical system or appliance occurs when the current level exceeds a predetermined safe level. This can be caused by various factors i.e. due to faulty wiring, short circuit, defective components and the like. PRG18BB470MB1RB PTC resettable fuse is a device designed to provide protection from over-current conditions.

PTC (Positive Temperature Coefficient) resettable fuses incorporate a unique design of thermoplastic material which exhibit a property called the PTC effect. This effect allows the fuse to act as an effective over current protector. When the current level reaches a predetermined level, the thermoplastic material within the PTC resettable fuse begins to heat up. With increased current, the heat level generated will proportionally increase causing an increase in the resistance of the PTC material. This rise in resistance will result in a decrease in the current which in turn will start decreasing the temperature of the thermoplastic material. When the predetermined threshold level of current is reached, the PTC resettable fuse will ‘open’ resulting in an interruption of the current flow, thereby protecting the electrical system and appliance from an over-current condition.

The PRG18BB470MB1RB PTC resettable fuse is a surface mounted type of fuse typically found in consumer electronics and also in industrial applications. It comes in a 7.62mm x 4.6mm chip size package and is suitable for dip soldering operations. The current rating of the PRG18BB470MB1RB is 18A and its voltage rating is up to 30V DC or 24V AC. The nickel plated brass body of the fuse provides good heat sinking ability and exhibits excellent solderability. The thermal and electrical performance of the PRG18BB470MB1RB is 40A at 25℃ and 1000V/1000A/60s.

A major benefit of the PRG18BB470MB1RB PTC resettable fuse is that it can be used again after the over-current condition is resolved. That is, when the accumulated heat of the PTC material dissolves, the circuit resumes its normal functioning. The other main benefits include low profile, robust construction, excellent thermal and electrical properties and cost efficiency. All these features make the PRG18BB470MB1RB PTC resettable fuse a suitable choice for a variety of consumer and industrial electronics.

The applications of the PRG18BB470MB1RB PTC resettable fuse includes but not limited to automotive electronics modules, power tools, home appliances, toys, DC motors, LED lighting and portable electronic devices. In typical applications, the PRG18BB470MB1RB resettable fuse is mounted on a printed circuit board close to the load. It is connected in series with the supply to the load, which is monitored and protected against over-current conditions.

In conclusion, the PRG18BB470MB1RB PTC resettable fuse is an effective device which provides protection against over-current conditions in many consumer and industrial electronics applications. It can be reset after the over-current condition is safely resolved, and therefore can be used again for multiple operating cycles. The features which make the PRG18BB470MB1RB PTC resettable fuse a suitable choice include its low profile design, robust construction, excellent thermal and electrical properties and cost efficiency.

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