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Neodymium Φ4mmX2.5mm

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Product specification 2D DESIGN 3D DESIGN
Back
Voice Name Symbol SI CGS
Shape Diameter D 4 mm 0.4 cm
Height H 2.5 mm 0.25 cm
direction of magnetization M A
Weight Net 0.000235 kg 0.235 g
Surface treatment Ni 12 μm  
Magnetic
Characteristics		 Surface magnetic flux density B 366.3 mT 3663 Gauss
Suction force
Adhesion		 F 0.421 kgf 421 gf
Magnetic flux density on load point Bd 766 mT 7660 Gauss
Total flux φo 0.00000962 Wb 962 Mx
Permeance Coefficient Pc 1.88 Pc  
Maximum usage temperature Tw 90 ℃
Minimum usage temperature Tw  ℃
Material properties Materialsymbols Neodymium 35H  
remanence Br 1170-1220 mT 11.7-12.2 kG
Coercivity Hcb ≧868 kA/m  kOe
Intrinsic coercive force Hcj ≧1353 kA/m  kOe
Maximum energy product BH 263-287 kj/m3  MGOe
Temperature coefficient Br -0.11 %/℃  
Hcj -0.53 %/℃
Heat resistant temperature Tw ≦120 ℃
Curie temperature Tc 340 ℃
Density ρ 7.5 kg/m3
Remarks REACH RoHS Directive

*Magnetic flux density and attraction/heat force depends on the measurement equipment and the environment. These are only references values, these are not the guaranteed value.