Littelfuse 4A GDC Type 5 x 20mm Slo-Blo Fuse - (MA1240a & SPA500)

The Littelfuse 4A GDC Type 5 x 20mm Slo-Blo Fuse offers reliable overcurrent protection for sensitive audio equipment, ensuring your valuable components remain safe from damaging current surges. As a trusted name in circuit protection, Littelfuse delivers consistent performance and durability in this compact glass tube design.

This fuse is specifically intended for use with the MA1240a and SPA500 models, making it an ideal replacement or spare part for these audio systems. It is also well-suited for other electronic devices that require a slow-blow characteristic, such as power supplies, amplifiers, and instrumentation where brief inrush currents are common. Whether you are servicing professional audio gear or maintaining home hi-fi equipment, this fuse provides the necessary protection without nuisance blowing.

Technically, the fuse is rated at 4 amperes and operates at 250V AC, with a 5 x 20mm physical size that conforms to standard fuse holders. The slo-blo (time-delay) design allows it to withstand temporary current spikes, such as those during power-on, while still reacting swiftly to sustained overloads. This characteristic is critical for audio equipment that may experience initial surge currents from capacitor charging or transformer energisation.

In summary, this Littelfuse 4A Slo-Blo Fuse is a cost-effective insurance policy for your electronics, combining trusted brand quality with precise specifications to keep your equipment running safely and reliably.