250V 20mm 0.5A

The 250V 20mm 0.5A fuse is a 20 mm cartridge fuse rated for 0.5 A (500 mA) at up to 250 V. Inside is a thin metal element that melts when the current rises above the rating, opening the circuit and protecting transformers, power supplies and the devices connected to them from overcurrent and short circuits. It fits fuse holders made for 20 mm fuses on PCBs, panels and inline holders.

250V 20mm 0.5A Fuse Specifications

• Current rating: 0.5 A (500 mA)
• Voltage rating: 250 V maximum
• Length: 20 mm
• Type: cartridge fuse with metal end caps
• Function: one-time overcurrent protection, replace after it blows

250V 20mm 0.5A Fuse Applications

• Replacing blown fuses in small appliances, chargers and adapters
• Protecting the primary side of small mains transformers
• Fused power inputs on DIY power supplies and amplifiers
• Protecting 12 V and 24 V circuits, LED drivers and control boards
• Spare fuses for the workbench and repair kits

What's in the Box

• 1 × 250 V 0.5 A fuse, 20 mm

Tip: Always replace a fuse with one of the same current rating, voltage rating and speed (fast-blow or slow-blow), and find out why it blew before fitting a new one. Never replace it with a higher current fuse or a piece of wire, because that removes the protection.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.