PTC Resettable Fuses

PTC resettable fuses are an important part of the electrical, automotive, and fire safety industry. These fuses act as a failsafe, breaking power when a device is either overloaded or experiences a short circuit. As the name implies, they can then be reset to resume working.

PTCTL7MR100SBE Application Field and Working Principle

PTCTL7MR100SBE is a PTC resettable fuse that is specifically designed for automotive applications. It is rated for high over-current protection in applications that have current between 7 and 100A. The fuse includes a resistor element with a predetermined thermal threshold, which is soldered onto a printed circuit board. When current exceeds the threshold, the element triggers a cut-off process that will break the current.

Once activated, the fuse will restart after the current flow is reduced or stopped. It is triggered actually by the heat generated from specificaly the current over the elements threshold. When a device such as a motor or light is no longer drawing too much current, the fuse cools, and the resistor element re-establishes contact, restarting the system.

PTCTL7MR100SBE is designed to be used in the circuit when the input voltage exceeds or is equal to 32V. The maximum continuous load current is 100 amps, and the minimum operating current is 7 amps. The main advantage of this fuse is that when it gets overloaded or experiences a short circuit, it will automatically trip and cut off power to the source in order to protect the device and continue reliable operation.

PTCTL7MR100SBE\'s design makes it an appropriate choice for automotive and other applications that demand high-current protection. Its ability to reset the circuit without having to be replaced is a big plus for safety and cost savings. And because the fuse is installed on the car\'s printer circuit board, it will be both easy to use and durable.

Conclusion

PTC resettable fuses provide an efficient and cost-effective way to protect devices from current overloads and short circuits. The PTCTL7MR100SBE is an excellent example of such a fuse, and its selection for automotive applications is a testament to its ability to provide safe and reliable operation.