Voice |
Name |
Symbol |
SI |
CGS |
Shape |
Length |
L |
40 mm |
4 cm |
Width |
W |
25 mm |
2.5 cm |
Height |
H |
5 mm |
0.5 cm |
direction of magnetization |
M |
A |
Weight |
Net |
0.0375 kg |
37.5 g |
Surface treatment |
Ni |
12 μm |
|
Magnetic Characteristics |
Surface magnetic flux density |
B |
170.9 mT |
1709 Gauss |
Suction force
Adhesion |
F |
11 kgf |
11065 gf |
Magnetic flux density on load point |
Bd |
277.2 mT |
2772 Gauss |
Total flux |
φo |
0.00027722 Wb |
27722 Mx |
Permeance Coefficient |
Pc |
0.32 Pc |
|
Maximum usage temperature |
Tw |
70 ℃ |
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.