Isotropic Sintered Ferrite
A cost effective solution to many applications where high resistance to demagnetisation is required. They may be supplied in either a magnetised or unmagnetised condition and other sizes can be cut to order. The sizes shown are some of the most popular, and are suitable for filters, transducers, separators and holding devices. Rings can be supplied magnetised axially or with between 2 and 10 poles on the flat faces in certain sizes for improved holding or for use in pairs as magnetic drives.
Low priced isotropic ferrite discs are widely used for toys, novelties, markers and holding with two or more poles applied to one face. Rings can be used for reed switch operation and when magnetised with multipoles on either the OD or on one flat face, to operate Hall Effect and Reed switches.
Select a Shape
List of shapes available in this material
Typical Magnet and Physical Specifications
MDL
Grade |
DIN |
Br |
bHc |
jHc |
BHMax |
| mT |
Gauss |
KA/m |
Oersted |
KA/m |
Oersted |
kJ/m3 |
MGO |
| FER 1 |
8/22 |
220 |
2200 |
136 |
1700 |
220 |
2750 |
8 |
1,0 |
| CER 5 |
24/18 |
400 |
4000 |
160 |
2000 |
185 |
2300 |
28 |
3,5 |
| FER 3d |
24/16 |
350 |
3500 |
155 |
1950 |
160 |
2010 |
24 |
3,0 |
| CER 8 |
26/26 |
370 |
3700 |
240 |
3000 |
260 |
3250 |
28 |
3,3 |
| FLEX 6 |
4/24p |
163 |
1630 |
110 |
1375 |
240 |
3000 |
4,5 |
0,6 |
| FLEX 11 |
9/22p |
225 |
2250 |
159 |
2000 |
222 |
2800 |
9,5 |
1,2 |
MDL
Grade |
DIN |
Magnetising Force (minimum) |
Max working temp |
Rev.
Temp.
Coeff.of
Br % ºC |
| kA/m |
Oersted |
ºC |
20 - 100ºC |
20 - 150ºC |
| FER 1 |
8/22 |
600 |
7500 |
250 |
4,8 |
-0,19 |
| CER 5 |
24/18 |
800 |
10000 |
250 |
5,0 |
-0,19 |
| FER 3d |
24/16 |
800 |
10000 |
250 |
5,0 |
-0,19 |
| CER 8 |
26/26 |
800 |
10000 |
250 |
4,9 |
-0,19 |
| FLEX 6 |
4/24p |
800 |
10000 |
75 |
3,7 |
-0,19 |
| FLEX 11 |
9/22p |
800 |
10000 |
75 |
3,7 |
-0,19 |
