Magnet Ring - 3/16"
These are small rare earth magnets - 3/16" rings. Composed of Neodymium/Iron/Boron (NdFeB), these magnets are curiously strong and make for a great way to attach tools to a metal workbench, hold small children to a fridge, and as a trigger for reed switches. This one small ring can easily hold a piece of paper to your fridge.
We found these small rings to be very useful for connecting PCBs together. These rings are conductive and can act as a magnetic connector between widgets. You need a way to secure the ring to the PCB (screws and rivets have been shown to work).
Sold in single units.
Features:
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Dimensions: 3/16" od x 1/16" id x 1/16" thick
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Tolerances: ±0.002" x ±0.002" x ±0.002"
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Material: NdFeB, Grade N42
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Plating/Coating: Ni-Cu-Ni (Nickel)
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Magnetization Direction: Axial (Poles on Flat Ends)
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Weight: 0.00665 oz. (0.189 g)
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Pull Force: 1.48 lbs!
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Surface Field: 2275 Gauss
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Brmax: 13,200 Gauss
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BHmax: 42 MGOe