FUSE选择教程

Fuse TechnologyOvercurrent Protection Group

FUSE TECHNOLOGY
This fuse technology guide will discuss basic fuse operating, application, and selection criteria concepts. The intended purpose of this section is to aid designers with the operation and characteristics of an overcurrent protection device and to assist in device selection. Overcurrent fuses serve two main purposes: a. To protect components, equipment and people from risk of fire and shock caused by overcurrents. To isolate sub systems from the main system once a fault has occurred. Pulse and In-rush characteristics Characteristics of equipment or components to be protected Physical size and available board space Standards requirements Ambient temperature Overload conditions and opening times Available short circuit current Melting Integr