DH28 Neodymium Magnets, 2/10 inch dia. x 1/2 inch thick

Item No.: ALB-DH28
Material: NdFeB, Grade N42
Shape: Cylinder
Dimension: 2/10" dia. x 1/2" thick
(5.08mm dia. X 12.7mm thick)
Tolerances: ±0.004" x ±0.004" (±0.1mm x ±0.1mm)
Weight: 0.0681 oz. (1.93 g)
Grade: N42
Coating: Ni-Cu-Ni (Nickel)
Pull Force(lbs): 2.45 lbs
Surface Field(Gauss): 6472 Gauss
Magnetization direction: Axial (Poles on Flat Ends)
Max Operating Temp: 80°C
Product Drawing: PDF drawing of ALB-DH28 · JPEG drawing of ALB-DH28

Other Grade DH28 Neodymium Magnets (2/10" dia. x 1/2" thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-DH28-N35 DH28-N35 Neodymium Magnets 4.86 lbs Inquiry
N38 ALB-DH28-N38 DH28-N38 Neodymium Magnets 4.86 lbs Inquiry
N40 ALB-DH28-N40 DH28-N40 Neodymium Magnets 5.27 lbs Inquiry
N42 ALB-DH28 DH28 Neodymium Magnets 5.78 lbs Inquiry
N45 ALB-DH28-N45 DH28-N45 Neodymium Magnets 6.23 lbs Inquiry
N48 ALB-DH28-N48 DH28-N48 Neodymium Magnets 6.69 lbs Inquiry
N50 ALB-DH28-N50 DH28-N50 Neodymium Magnets 6.98 lbs Inquiry
N52 ALB-DH28-N52 DH28-N52 Neodymium Magnets 7.27 lbs Inquiry
N42SH ALB-DH28SH DH28SH Neodymium Magnets 5.78 lbs Inquiry

High Temperature DH28 Neodymium Magnets (2/10" dia. x 1/2" thick) are also available:

Neodymium Material Type Maximum Operating Temp Curie Temp
N (N35-N52) 176°F (80°C) 590°F (310°C)
NM (N35M-N52M) 212°F (100°C) 644°F (340°C)
NH (N33H-N52H) 248°F (120°C) 644°F (340°C)
NSH (N30SH-N50SH) 302°F (150°C) 644°F (340°C)
NUH (N28UH-N48UH) 356°F (180°C) 662°F (350°C)
NEH (N28EH-N48EH) 392°F (200°C) 662°F (350°C)
NAH (N28AH-N35AH) 428°F (220°C) 662°F (350°C)

The Thermal Characteristics listed above are values commonly associated with each magnet's grade or material.  Actual performance in your application may vary with other factors, including the shape of the magnet, the Permeance Coefficient or load line, and how it is used in a circuit.  

DH28 Neodymium Magnets (2/10" dia. x 1/2" thick) with other Coating are also available:

Coating Type Overall Thickness Salt Spray Test Pressure Cooker Test
Ni-Cu-Ni (Nickel) 15-21 μm 24 hours 48 hours
NiCu + Black Nickel 15-21 μm 24 hours 48 hours
NiCuNi + Epoxy 20-28 μm 48 hours 72 hours
NiCuNi + Gold 16-23 μm 36 hours 72 hours
NiCuNi + Silver 16-23 μm 24 hours 48 hours
Zinc 7-15 μm 12 hours 24 hours

Each individual layer of Nickel and Copper are 5-7 μm thick. The Gold and Silver Coating layers are 1-2 μm thick. Test results shown to allow comparison between Coating options. Performance in your application under your specific test conditions may vary. Salt Spray testing conducted with a 5% NaCl solution, at 35°C. Pressure Cooker Test (PCT) conducted at 2 atm, 120°C at 100% RH.

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providing you with reliable N35, N38, N42, N52, N42SH and other grade super neodymium magnets and SmCo rare earth magnets.

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