LR4-260SF

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PTC Resettable Fuses have widespread applications and are an important part of several electrical systems. One such type of PTC Resettable Fuse is the LR4-260SF, which is a surface mount fuse that is designed to replace standard time-delay/slow-blow fuses. As a result, this particular type of resettable fuse offers better current protection while helping to reduce the size and weight requirements of power supplies, making them ideal for integration into smaller and lighter equipment.

The LR4-260SF applies a ceramic element that has been positively charged with a PTC (positive temperature coefficient) material. This fuse can support up to 60V DC/AC and 260mA of current, making it very suitable for small to medium-sized electrical applications such as adapting a desktop PC’s power supply to handle more current, or protecting laptop chargers.

The way the LR4-260SF works is very simple. When the temperature of the ceramic element exceeds a certain threshold, which is based on the power rating of the unit, the ceramic element undergoes a direct current ‘reset’. This reset causes the resistance of the element to plummet, causing a reduction in the current flowing through the circuit. The current can be restored to its nominal level by cooling the element down to its original temperature. As the element cools, its resistance increases again to its original level.

The major advantage of using LR4-260SF PTC Resettable Fuses is that they are self-regulating and can react to and reduce dangerous levels of current faster than a standard fuse. They are also much easier to replace than other style fuses, as all you need to do is reset the fuse by cooling the ceramic element. As it offers enhanced current protection while also reducing size and weight requirements, this type of PTC Resettable Fuse is ideal for integration into compact and lightweight equipment.

The LR4-260SF also requires almost no maintenance and has a very long service life, making it a very reliable and cost-effective alternative to other types of fuses on the market. This type of resettable fuse is also very easy to install, as all you need to do is solder it in place and it is ready to go. It is also fully compliant with RoHS and UL standards, so it can be incorporated into virtually any lighting, industrial, medical or other applications.

In conclusion, the LR4-260SF is a very reliable and efficient PTC Resettable Fuse that is suitable for a wide range of applications including adapting desktop PC’s power supplies, protecting laptop chargers, and integrating into compact and lightweight devices. It is easy to install, operates without requiring any maintenance and is fully compliant with RoHS and UL standards. This type of resettable fuse is a very cost-effective and reliable option for anyone who is looking for effective current protection.

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