Littelfuse, Inc. announces its 505 Series of 632 mm ceramic-body, fast-acting cartridge fuses for high energy applications. With Ampere ratings from 10 A to 30 A, they can safely interrupt fault currents at 500 V AC/DC. This series also includes axial lead versions, making them suitable for PCB through-hole mounting where space is limited. With its 500-V rating for both AC and DC, the series is an alternative to 6 × 32 mm fuses that are not rated for DC applications, and they are also good replacements for power fuses. Applications include three-phase power supplies, uninterruptable power supplies (UPS) and other high-energy equipment. All the fuses in this series are RoHS-compliant/lead-free, and they are recognized under UL and CSA component programs.