1/4 x 1/8 Inch Diametric Disc Magnet | D42DIA N42 Magnets

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Additional information

Size	0.25 x 0.125 Inch ( Diameter x Thickness )
Tolerances	±0.004 in (.1mm)
Coating	Nickel-Copper-Nickel (Ni-Cu-Ni)
Grade	N42
Magnetization Direction:	Diametrically Magnetized

Description:

Size:0.25 x 0.125 Inch ( Diameter x Thickness )
Metric Size:6.35 x 3.17 mm ( Diameter x Thickness )
Tolerances: ±0.004 in (.1mm)
Material: NdFeB, Grade N42
Plating/Coating: Ni-Cu-Ni (nickel)
Magnetization Direction: Diametrical
Weight: 0.0266 oz. (0.754 g)
Pull Force, Case 1: 1.32 lbs
Pull Force, Case 2: 1.80 lbs
Surface Field: 6898 Gauss
Max Operating Temp: 176ºF (80ºC)
Brmax: 13,200 Gauss
BHmax: 42 MGOe

Applications:

These discs are diametrically magnetized, meaning the magnetic poles are located on opposite sides of the circular edge, rather than on the flat faces like most disc magnets. As a result, they tend to align side-to-side instead of stacking flat. This unique magnetization makes them especially interesting for experiments and demonstrations.

These magnets are commonly used in conjunction with Hall Effect switches and sensors, where lateral magnetic field orientation is required.