Kentech FB1A Fast-Blow Glass Fuse (5 x 20mm, 1A)

• Compact fast-acting (fast-blow) miniature glass tube fuse engineered to protect delicate electronic circuits, pro-audio components, and power supply modules from overcurrent damage.
• Features a fast-blow response profile that rapidly disconnects the circuit during sudden current surges or short circuits, preventing costly component failure.
• Standard 5 x 20 mm European form factor featuring nickel-plated brass end caps for high conductivity and long-term corrosion resistance.
• Clear glass cylinder casing allows for fast visual inspection to easily confirm whether the internal fuse element is intact or blown.
• Ideal replacement component for active speaker power supplies, audio mixers, DJ equipment, small appliances, and circuit boards.

Features

• Fast-Acting Circuit Protection: Opens instantly when current exceeds the 1-Amp threshold to safeguard sensitive electronics.
• Clear Glass Cylinder: Transparent casing enables instant visual check of the fuse wire without needing diagnostic tools.
• Nickel-Plated End Caps: Ensures reliable, low-resistance electrical connectivity within fuse holders and PCB clips.
• Standard 5 x 20 mm Footprint: Compact European standard size compatible with 5x20mm panel-mount, inline, and PCB fuse holders.
• Broad Application: Essential maintenance replacement part for pro-audio equipment, electronic repairs, and industrial controls.

Specifications

• Model / Part Number: FB1A (5x20)
• Brand / Manufacturer: Kentech
• Product Type: Fast-Blow Glass Tube Fuse
• Current Rating: 1A (1 Amp)
• Voltage Rating: 250V AC
• Fuse Speed / Characteristic: Fast-Blow / Fast-Acting (F)
• Dimensions / Size Code: 5 x 20 mm (0.20" x 0.79")
• Body Material: Transparent Glass Tube
• Cap Material: Nickel-Plated Brass
• Application: Active Speakers, Audio Mixers, Power Supplies, PCB Circuit Protection, Small Appliances

What's in the box
1 x Kentech FB1A 5x20mm 1A Fast-Blow Glass Fuse