8158 – Ceramic VIII Ferrite Disk Magnet 1 × 1/4 in

This Ceramic VIII ferrite disk magnet measures 1 inch in diameter × 1/4 inch thick. It is axially magnetized, with the north and south poles on the two flat circular faces.

Ceramic VIII Disk Magnet Specifications

Design Notes

Axial magnetization places the poles on the 1-inch circular faces. The listed surface field is 900.37 gauss, with a listed pull force of 2.14 lb under the stated test conditions. Ceramic ferrite material supports operation up to the listed maximum of 482°F (250°C).

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Confirm contact area, mounting method, adhesive selection, and dimensional stack-up for holding, fixtures, displays, prototypes, and production assemblies. Ceramic ferrite is hard and brittle, so avoid impacts, uneven clamping, and excessive mechanical stress. Review the complete magnetic circuit and operating conditions when assessing thermal capability.

The listed 2.14 lb pull force is a comparison value under defined contact conditions, not a guaranteed safe working load. Air gaps, target-steel thickness, surface roughness, misalignment, and shear loading can reduce usable holding force. Validate performance in the final assembly.

Use the magnet pull force calculator for preliminary screening, review the temperature derating calculator, browse ceramic and ferrite magnets, or submit the magnet RFQ builder for volume pricing and custom requirements.