Voice |
Name |
Symbol |
SI |
CGS |
Shape |
Length |
L |
40 mm |
4 cm |
Width |
W |
40 mm |
4 cm |
Height |
H |
10 mm |
1 cm |
direction of magnetization |
M |
A |
Weight |
Net |
0.12 kg |
120 g |
Surface treatment |
Ni |
12 μm |
|
Magnetic Characteristics |
Surface magnetic flux density |
B |
244.7 mT |
2447 Gauss |
Suction force
Adhesion |
F |
25.7 kgf |
25782 gf |
Magnetic flux density on load point |
Bd |
402 mT |
4020 Gauss |
Total flux |
φo |
0.00064331 Wb |
64331 Mx |
Permeance Coefficient |
Pc |
0.53 Pc |
|
Maximum usage temperature |
Tw |
80 ℃ |
Minimum usage temperature |
Tw |
℃ |
Material properties |
Materialsymbols |
Neodymium |
35 |
|
remanence |
Br |
1170-1220 mT |
11.7-12.2 kG |
Coercivity |
Hcb |
≧868 kA/m |
kOe |
Intrinsic coercive force |
Hcj |
≧955 kA/m |
kOe |
Maximum energy product |
BH |
263-287 kj/m3 |
MGOe |
Temperature coefficient |
Br |
-0.12 %/℃ |
|
Hcj |
-0.55 %/℃ |
Heat resistant temperature |
Tw |
≦80 ℃ |
Curie temperature |
Tc |
310 ℃ |
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.