7.5x2.5mm Disc Magnets

SKU: 44202-2.5

$0.53USD or lower Each

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This little neodymium disc magnet measures 7.5x2.5mm or roughly 3/10 x 1/10" with use in applications including proximity sensors. 

Click on Tabs below for additional information.

Details

The Mark I Magnaprobe can respond to as little as 0.3 gauss & will detect weaknesses in magnetic shielding. The Mark II Magnaprobe is a fast & convenient way to confirm magnet are positioned with their poles pointing correctly.

In Kits
P/NDescriptionQTY
44202-PB7.5mm Nd magnet protoype bundle10
Specifications
Field Strength (Gauss) & Pull Force in Pounds & Kilograms at 5 Distances Above Magnet
SKU: 44202-2.5      Size:  7.5 × 2.5mm
Distance (mm): 0 0.1 1 10 100
Gauss 3661.0 3584.6 2802.7 141.9 0.2
Lb 2.20 2.11 1.29 0.00 0.00
Kg 1.00 0.96 0.59 0.00 0.00

 

Magnet Documentation

Drawing Compliance MSDS ROHS Graph
Magnet Technical Diagram Certificate of Compliance MSDS ROHS N42 Graph


Specifications for Fully Sintered/Pressed Neodymium Magnets, N42 Grade

RemanentFlux Density (Br) 13,000G; 1300mT
Coercivity (bHc) 12.0 Oe; 955 A/m
Intrinsic Coercivity (jHc) 17.0 Oe; 1353 A/m
Max.Energy Product (BHMax) 42 MGO; 334 kJ/m3
Curie Temperature (Tc) 310oC
Working Temperature (Tw) 80oC
Temp.Coefficient (αB)r -0.12%/Co


Tolerances - Sintered Rare Earth Magnets

  Dimensions Tolerances

Size:
Unfinished Surfaces:
Dimensions perpendicular to pressing (die formed)

Inches mm Inches mm
0 to 0.125 0 to 3 +/- 0.006 +/- 0.15
0.126 to 0.625 3 to 16 +/- 0.012 +/- 0.30
0.626 to 0.875 16 to 22 +/- 0.018 +/- 0.45
0.876 and Up 22 and Up +/- 2.5% +/- 2.5%


American (Imperial)/Metric Conversion Table

Inch Decimal mm Rounded
1/32" 0.031 0.8 1
3/32" 0.094 2.4 2.5
5/32" 0.156 4.0 4
1/16" 0.063 1.6 1.5
3/16" 0.188 4.8 5
2/10" 0.200 5.1 5
1/8" 0.125 3.2 3.75
1/4" 0.250 6.4 7.5
5/16" 0.313 7.9 7.5
3/8" 0.375 9.5 10
13/32" 0.406 10.3 10
1/2" 0.500 12.7 12.5
9/16" 0.563 14.3 15
5/8" 0.625 15.9 15
11/16" 0.688 17.5 17.5
3/4" 0.750 19.1 20
13/16" 0.813 20.6 20
7/8" 0.875 22.2 22.5
15/16" 0.938 23.8 25


See what these customers had to say on Google (click on name for full review):

Tracy Myerson: ...purchased N42 Neodymium magnets, they are the real deal...had previously bought magnets on Amazon that were advertised as N52, they were just another cheap Chinese fake....

Ron Bennett: Fantastic support and product. Beats Amazon price with real customer service...product was of the highest quality and exactly as described.

Peter Maran: Their Neodymium magnets are superb in quality and price; ...tools, magnifiers, tweezers, and so on, all quality made...

 

Reviews (1)
2021-08-25

Good, strong magnets! My order arrived quickly and do the job I need them to do. I had previously ordered from Amazon but the magnets were so week as to be useless. I was happy to learn about this Canadian company! Liz

— Liz
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