Magnetic Ring 5mm (3/16″) Rare Earth Magnet

£0.95 inc VAT

Availability: 17 in stock (can be backordered)

Brand: SparkFun
Part Number: COM-08914
SKU: PPCOM-08914
Barcode: 5055421007454
SKU: PPCOM-08914 Categories: , Tag:

Magnetic Ring 5mm (3/16″) Rare Earth Magnet

This little beauty is a 5mm (3/16″) rare earth magnet ring. It is 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.

These magnets are good for connecting PCBs together too. The rings are conductive and can act as a magnetic connector between widgets. You just need a way to secure the ring to the PCB (screws and rivets have been shown to work).

Magnet Features:

  • Material: NdFeB, Grade N42
  • Plating/Coating: Ni-Cu-Ni (Nickel)
  • Magnetization Direction: Axial (Poles on Flat Ends)
  • Weight: 0.00665 oz. (0.189 g)
  • Pull Force: 1.48 lbs!
  • Surface Field: 2275 Gauss
  • Brmax: 13,200 Gauss
  • BHmax: 42 MGOe

Magent Dimensions:

  • Outside Diameter: 4.76mm (0.1875″)
  • Internal Diameter: 1.59mm (0.0625″)
  • Thickness: 1.59mm (0.0625″)

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