Magnet Ring - 3/16 inch

Model No: MIS-00401

TK. 120.28

Availability: In stock


Category: Magnet

Supplier: SparkFun, USA

Summary Magnet Ring - 3/16"

Dimensions: 3/16" (4.7625mm) outer dia x 1/16" (1.5875mm) inner dia x 1/16" (1.5875mm) thick

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.

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  • Dimensions: 3/16" (4.7625mm) outer dia x 1/16" (1.5875mm) inner dia x 1/16" (1.5875mm) thick
  • Tolerances: ±0.002" x ±0.002" x ±0.002"
  • 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

Question & Answer

Total 1 questions

Q: Permanent magnet? Questioned by SaminPlayz, 18-Feb-2018

Yes. Answered by A.R, 18-Feb-2018 17:30 PM

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