Raychem Circuit Protection PolySwitch devices are commonly called resettable devices to distinguish them from traditional one-shot fuses that work only once and then must be replaced - an expensive and inconvenient proposition. While the generic term for these devices is sometimes called "resettable fuses", technically these are not fuses but actually non-linear thermistors. PolySwitch devices are the world's leading PPTC (polymeric positive temperature coefficient) devices for circuit protection in a broad variety of electronic equipment applications.

Raychem Circuit Protection Advantage
So much more than a simple fuse alternative, resettable circuit protection is now an important aspect of product reliability and safety, helping to prevent costly damage to printed circuit boards, guard against damage caused by unsafe battery charging conditions, protect motors from failure and, in so many other ways, increase the value of your products and systems.

Raychem Circuit Protection continues to drive the development and application of this technology with a broad range of product solutions. And we're working on advancing our technologies to keep pace with market demand, as well as providing the enabling material science technology for new