For the Christmas and New Year's Day holidays, orders placed after 1:00PM EST on Friday, 12/21 will be shipped on Wednesday, 12/26. Orders placed after 1:00PM EST on Friday, 12/28 will be shipped on Wednesday, 1/2/19.

UPS and USPS do not guarantee delivery times through the end of the year. This may include an extra day in ground shipping and later delivery for overnight services.

Canada: Postal shipping delays are possible from the Canada Post strike.
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Details
D42DIA
D42DIA
 
D42DIA
  • Description
  • Technical
  • Downloads
These discs are "diametrically magnetized," which means that the poles are located on opposite sides of the circular shape, not in the center of the circular flat surfaces like most disc magnets. The magnets will tend to want to line up side-to-side rather than stack on their flat surfaces. The unusual magnetization makes them an interesting disc to experiment with.

These discs are often used with Hall Effect switches and sensors.

This size is also available axially magnetized in grade N52 with silver nickel plating as part number D42-N52, in grade N42 with silver nickel plating as part number D42, in grade N42 with black epoxy coating as part number D42E, and in grade N52 with black nickel plating as part number D42B-N52.

Case1 Pull Force, Case 1 vs. distance: Magnet to a Steel Plate.
Case2 Pull Force, Case 2 vs. distance: Between 2 Steel Plates.
Case3 Pull Force, Case 3 vs. distance: Magnet to Magnet.
Case4 Pull Force, Case 4 vs. distance: Magnet to Magnet Repulsion.
BH Curves View B-H curves for this magnet.

SpecSheet Click here to download a PDF Specification Sheet.
Drawing Click here to download a PDF drawing of this product.
Cert Click here to download a Certificate of Compliance for this product.
RoHS Click here to download a RoHS Statement of Compliance for this product.
MSDS Click here to download a Material Safety Data Sheet (MSDS) for this product.
CMRT Click here to download a Conflict Minerals Reporting Template (CMRT).
Origin Click here to download a Certificate of Origin for this product.
REACHClick here for a REACH compliance statement.
STEP Click here to download a .STEP file (3D model).
IGS Click here to download an .IGS file (3D model).



   Download the free Adobe Acrobat Reader
 Price: $0.38
 
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Price ea.Qty
$0.38 1-49
$0.37 50-99
$0.36 100-499
$0.35 500-999
$0.34 1000-2499
$0.33 2500-9999
$0.32 10000-24999
$0.31 25000-49999
For pricing at higher order quantities,
please email us!
December
Specials

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WPH-LG
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WPH-LG

Magnetic Hook
Great for holding a wreath to a steel door!


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K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets