20mm x 3mm Ferrite Disc Magnet (Dia 20mm, Height 3mm)

20mm × 3mm Ferrite Disc Magnet (Dia 20mm, Height 3mm)

This ferrite disc magnet is made from sintered strontium ferrite (ceramic), one of the most widely used and cost-effective permanent magnet materials available. With a diameter of 20mm and a height of 3mm, this is a wide flat disc magnet that delivers a strong and evenly distributed magnetic hold across a generous surface area. The 20mm diameter provides one of the widest magnetic footprints among standard ferrite disc magnets, making it a dependable choice for applications where maximum surface contact is needed while keeping a slim and low-profile form. Ferrite magnets are naturally resistant to corrosion and demagnetisation, making them a practical long-lasting choice for both indoor and outdoor use without any protective coating needed.

Key Features

• Wide 20mm diameter delivers one of the largest magnetic footprints for maximum surface contact
• Slim 3mm height maintains a low-profile design while maximising surface hold
• Naturally corrosion resistant, suitable for outdoor and humid environments
• High operating temperature of up to 250°C for heat exposed applications
• Axially magnetised through height for easy stacking and alignment
• Cost effective choice for general purpose and bulk applications

Common Uses

• Cupboard, cabinet, and drawer closures
• Craft and hobby projects
• School science experiments
• Sensor and reed switch activation
• Packaging and box closures
• General purpose holding and organising