Single-use fuse still has role to play

Despite the availability of more complex circuit-protection devices, a basic single-use fuse is sometimes what an application or an industry standard requires. The FT600 series of fuses from the Raychem unit of Tyco Electronics is well-suited for crowded, height- and space-constrained pc boards (Picture). To prevent any damage to your underlying pc-board traces or layers, the fuses feature low temperature rise, and they are rated for 0.5, 1.25, or 2A. Meeting Telcordia and UL specifications, these devices sell for 40 cents (100,000).

Raychem Circuit Protection Unit, Tyco Electronics, 1-800-227-7040, www.tycopowercomponents.com.