Available accessories include lock washers, neoprene washers, O-rings, and adapters/caps/covers. The Holder Selection page lists all the holders compatible with the fuse and all the other requirements. Once a holder is specified, the Summary page provides access to pricing and availability information, a link to the part's datasheet and an "Order Sample" button. The Littelfuse iDesign platform, the first of its kind for circuit protection devices, was developed in response to requests from Littelfuse customers. It offers a fast, intuitive way to identify the best component for an application, find parts documentation, and order part samples for prototyping, all in one convenient package. The tools it provides walk users through the selection process, quickly narrowing down the available components based on the application parameters input.