LITTELFUSE 224/225 Series Fast Acting Fuses are designed for supplementary protection in appliance and utilization equipment, providing individual protection for components and internal circuits. Available in both axial lead and cartridge configurations, these fuses offer a compact design, occupying one-third the space of a 3AG fuse. They are RoHS compliant and feature various agency approvals, ensuring reliable performance. The fuses are constructed with a glass body, nickel-plated brass cap, and tin-plated copper leads, meeting industry standards for terminal strength, solderability, and product marking. Operating temperatures range from -55°C to 125°C, and they are designed to withstand thermal shock, vibration, humidity, and salt spray conditions.