12.5x5x2.5mm Nd Donut Magnet

SKU: 44607-2.5

$1.36USD or lower Each

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This rare earth ring magnet measures 12.5x5x2.5mm and can be used in designs involving switches & motors. See Details below for more information.

Click on the Specifications tab below to see holding force values for this ring magnet.

We have sold NdFeB magnets since 1996 and N42 grade since 2003, the best value for strength & temperature vs cost. Don't be fooled by claims of higher strength, N52, at lower cost.

Read the complete Google Customer Review for: "...(Indigo) N42 Neodymium magnets...the real deal…bought magnets on Amazon advertised as N52… another cheap Chinese fake"

We also provide complete Documentation including MSDS & ROHS; see below.
Details Specs Docs Reviews Related Products
Details

The Mark I Magnaprobe can respond to as little as 0.3 gauss & will detect weaknesses in magnetic shielding. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.

Related information or images
Reed Switch Motor

Reed Switch Motor

Specifications
SKU:44607-2.5;     Size:OD12.5 x 5 x 2.5
Pull Force in Pounds & Kilograms at different distances (mm) above Magnet
Distance (mm): 0 0.1 1 10
Pounds 3.92 3.21 1.45 0.03
Kilogram 1.78 1.46 0.66 0.01

 

Click on N42 Magnet Specifications for a table that lists general characteristics such as coercivity & remanence.

Click on N42 Magnet Tolerances for a table that lists the range of variation in thickness, diameter, etc.

Click on American vs Metric to see a table with conversions & as well as rounded mm equivalents closest to inch sizes.

Documentation

Magnet Documentation
Drawing Compliance MSDS ROHS Graph REACH
Magnet Technical Diagram Certificate of Compliance MSDS ROHS N42 Graph REACH Document
Reviews (1)
2020-09-30
As advertised, shipped quickly and free of damage, good cost. Not much more that you can ask for.
— Steven
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