Samarium Cobalt Magnet  > Vertical Magnetic Field Molding
DIANET SERIES

Vertical Magnetic Field Molding

OUTLINE

Manufactured by an integrated process extending from raw materials to finishing, our DIANET is a samarium-cobalt (SmCo) magnet offering high performance, accuracy, and quality.
DIANET used in stepping motors for wristwatches, but they are used in other, ever expanding, applications, including microelectronic parts for audio and
telecommunications devices; reflow-mounted thin, compact devices; and microelectromechanical systems (MEMS).

FEATURES

• Superior heat resistance and reflow mountable
• Superior corrosion resistance, without deterioration of magnetic properties
• No processing-related deterioration of magnetic properties, thus ontributing to equipment downsizing and reduced energy consumption
• Useful in applications having a dimensional tolerance on the scale of microns, made possible by our proprietary precision processing technology
• Minimum magnetic characteristic variations, made possible by our proprietary manufacturing technology, thus contributing to device stabilization
• Simple, ultra-precise compact shape, so cost performance is excellent, made possible by our proprietary near net shape processing technology

APPLICATIONS

• Buzzer (ex: cellular phone)
• Optical isolator
• Inner phone
• Receiver (ex: cellular phone)
• Various sensors

SPECIFICATIONS
Spec
Magnet
(Note)
Machine
 
Based
 
Designation
Residual magnet flux density Br(T)
Residual magnet flux density Br(G)
Coercive force bHc (kA/m)
Coercive force bHc (Oe)
Coercive force iHc (kA/m)
Coercive force iHc (Oe)
Maximum energy product max
BHmax(KJ/m3)
Maximum energy product max
BHmax(MGOe)
Reversible permeability (μr)
Curie temperature (ºC)
Coefficient of thermal expansion
(X10-6/ºC)
Density (g/m3)
Hardness (HV)
Stiffness (Kg/mm2)
Electric Resistance (Ω•m)
Characteristic
SmCo5
1-5based
DM-16
0.77-0.82
7700-8200
597-653
7500-8200
> 716
>9000
111-135
14-17
1.05
700-750
8.0
8.2-8.5
>530
19±2
0.8X10-6
DM16 B-H
SmCo5
1-5based
DM-18
0.81-0.87
8100-8700
621-684
7800-8600
> 696
>8750
119-143
15-18
1.05
700-750
8.0
8.2-8.5
>530
19±2
0.8X10-6
DM18 B-H
SmCo5
1-5based
DM-20
0.84-0.90
8400-9000
629-708
7900-8900
> 676
>8500
135-159
17-20
1.05
700-750
8.0
8.2-8.5
>530
19±2
0.8X10-6
DM20 B-H
SmCo5
1-5based
DM-22
0.87-0.94
8700-9400
637-732
8000-9200
> 637
>8000
143-175
18-22
1.05
700-750
8.0
8.2-8.5
>530
19±2
0.8X10-6
DM22 B-H
Sm2Co17
2-17based
DM-30
1.06-1.13
10600-11300
477-796
6000-10000
> 557
>7000
207-239
26-30
1.05
800-850
9.8
8.3-8.5
>550
16±2
0.8X10-6
DM30 B-H

Note) Magnetic characteristics may be changed depending upon customer's specified dimensions and shape.
For details, please contact us.


For details, please contact Seiko Instruments Sales offices.