The ASMD1812-050 with PTC Resettable Fuses 1812 RoHS is a surface mount device (SMD) developed by JDT. It is a one-time, polymeric positive temperature coefficient (PPTC) fuse that is used to protect against short circuits, overloads, or other over-current conditions. The fuse has an operating voltage range of up to 50 volts and offers a current rating of up to 5 amps. The fuse also features an 1812-size package to make it more compatible with space-constrained circuit board designs, and it is compliant with RoHS standards for eco-friendly electronic components. The fuse resets automatically after the current is removed, which means that it can be reused instead of having to replace it each time.