Littelfuse 3A Medium Delay Glass Cartridge Fuse 5mm x 20mm

The Littelfuse 234-Series 5mm x 20mm Cartridge Fuse is a reliable medium-acting protection device designed for a wide range of electronic and appliance applications. With a 3A current rating and 250VAC voltage rating, it serves as supplementary protection within equipment, safeguarding individual components or internal circuits from overcurrent conditions.

This fuse is constructed with a durable glass body, allowing for visual inspection of the filament, and features tin-plated copper leads and nickel-plated brass end caps for excellent conductivity and corrosion resistance. It is designed and certified to meet rigorous international standards including UL, CSA, and ANCE 248.

Key Features and Applications

• Medium Time Delay: Provides a delay before blowing, making it suitable for circuits with harmless temporary inrush currents, such as those found in transformers, motors, and power supplies.
• High Breaking Capacity: Offers a breaking capacity of 100A AC, ensuring it can safely interrupt high fault currents.
• Broad Temperature Range: Operates reliably in environments from -55°C to 125°C.
• Low Cold Resistance: A nominal cold resistance of 0.0431Ω minimises power loss and voltage drop during normal operation.

This fuse is an essential component for engineers and technicians, providing dependable, standards-compliant circuit protection for appliance manufacturing, equipment repair, and electronic prototyping.