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.
We have sold NdFeB magnets since 1996 and have offered N42 grade since 2003, the best value for strength vs cost then & now. Don't be fooled by claims of higher strength, N52, at lower cost:
"...(Indigo) N42 Neodymium magnets...the real deal…bought magnets on Amazon advertised as N52… another cheap Chinese fake". Read the complete review.
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.
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
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
Related Products
For each Related Product, enter the quantity you would like to order and click the Add to Cart button beside the item.
