D25x1mm Neodymium Magnet, 25 x 1mm Disc Magnet

Item No.: D25x1mm
Material: NdFeB, Grade N42
Shape: Disc
Dimension: 25mm dia. x 1mm thick
Tolerances: ±0.1mm x ±0.1mm
Weight: 3.682g
Grade: N42
Coating: Ni-Cu-Ni (Nickel)
Pull Force(lbs): 3.47 lbs (1.58kg)
Surface Field(Gauss): 526 Gauss
Magnetization direction: Axial (Poles on Flat Ends)
Max Operating Temp: 80°C
Product Drawing: PDF drawing of D25x1mm · JPEG drawing of D25x1mm

Other Grade D25x1mm Neodymium Magnets (25mm dia. x 1mm thick):

Grade Item No. Product Name Pull Force Inquiry
N35 ALB-D25x1mm-N35 D25x1mm-N35 Neodymium Magnets 2.92 lbs (1.33kg) Inquiry
N38 ALB-D25x1mm-N38 D25x1mm-N38 Neodymium Magnets 2.92 lbs (1.33kg) Inquiry
N40 ALB-D25x1mm-N40 D25x1mm-N40 Neodymium Magnets 3.16 lbs (1.44kg) Inquiry
N42 ALB-D25x1mm D25x1mm Neodymium Magnets 3.47 lbs (1.58kg) Inquiry
N45 ALB-D25x1mm-N45 D25x1mm-N45 Neodymium Magnets 3.68 lbs (1.67kg) Inquiry
N48 ALB-D25x1mm-N48 D25x1mm-N48 Neodymium Magnets 3.90 lbs (1.77kg) Inquiry
N50 ALB-D25x1mm-N50 D25x1mm-N50 Neodymium Magnets 4.02 lbs (1.83kg) Inquiry
N52 ALB-D25x1mm-N52 D25x1mm-N52 Neodymium Magnets 4.13 lbs (1.88kg) Inquiry
N42SH ALB-D25x1mmSH D25x1mmSH Neodymium Magnets 3.47 lbs (1.58kg) Inquiry

High Temperature D25x1mm Neodymium Magnets (25mm dia. x 1mm 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.  

D25x1mm Neodymium Magnets (25mm dia. x 1mm 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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