3D Printed Kinetic Charger

SKU: 44257-2.5

$1.45USD or lower Each

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This 25x5x2.5mm neodymium block magnet can be used in a Halbach Array based Kinetic Charger that can power cellphones, tablets and more while on the move anywhere.

Check out this interesting design by the people at Akinora or explore their design in detail at Thingverse.

Note that this magnet has been discontinued but we can order it if you need some.

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
Details

Titanium tweezers can be used to handle small block magnets & position them easily. The Mark I Magnaprobe is ultra sensitive & can be used to check stray magnetic fields. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.

Related information or images
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Magnetic Pendant

Pendant
Specifications

Magnet Characteristics

Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet
SKU: 44257-2.5      Size:  25 x 5 x 2.5mm
Distance (mm): 0 0.1 1 10 100
Gauss 3380.8 3294.9 2472.1 216.0 0.6
Lb 4.46 4.24 2.38 0.02 0.00
Kg 2.03 1.93 1.08 0.01 0.00

 

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
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