PRODUCTS CATALOG
Magnetic powder:
Flexible magnets:

Along with the development of communication, computer, internet and related information industry, MnZn soft ferrite acts a more and more important role nowadays. Unimagnet owns a production line of precipitation process, the capability is of around 800MT and more than 20 grades annually.

For different purposes, Unimagnet can provide MnZn soft ferrite powder mainly classified in the three series: High μi and Bs materials, Power soft ferrite materials and Wide frequency high μi ferrite materials
.

Usage warning of MnZn soft ferrite powder:
1.Maximum height of stack not exceed 1.5 meter to avoid destroying the particle.
2.Not contact corrosive gas to avoid chemical reaction.
3.Not contact magnetic material to avoid changing physical properties of MnZn soft ferrite powder.
4.Well-sealed storage to avoid being affected by temperature and moisture.
5.Avoid strong shake and strike in transportation.
6.Avoid pneumatic conveyance in manufacture process.
7.Mixing process should be homogeneous with other additives.
8.Recycle is necessary, broken MnZn soft ferrite particle should be collected and recycled.

Typical products of High μi High Bs MnZn soft ferrite materials

Characteristics

Symbol

Unit

5B

5H

7H

7.5H

Initial permeability

μi

 

5500±25%

5300±25%

7000±25%

7500±25%

Relative loss factor

tanδ/μi

×10-6

≤15
(100KHz)

≤12(100KHz)
≤180(500KHZ)

≤7
(10KHZ)

≤30
(100KHZ)

Relative temperature
coefficient

αμr

×10-6
1/K

0~1.5
(20~60℃)

-0.5~1.5
(20~70℃)

0~1.5
(-30~20℃)

 

Saturation flux density

Bs

mT

420
(800A/m)

410
(1194A/m)

400
(800A/m)

410
(1194A/m)

Remanence

Br

mT

150

130

90

80

Coerciyity

Hc

A/M

8

8

10.4

6

Curie temperature

Tc

>140

>140

>125

>130

Resistivity

ρ

Ω·m

0.3

1

0.3

0.2

Density

d

Kg/m3×103

4.9

4.9

4.9

4.9

 

Characteristics

Symbol

Unit

10H

10M

13H

15H

Initial permeability

μi

 

10000±30%

10000±25%

13000±30%

15000±30%

Relative loss factor

tanδ/μi

×10-6

≤7
(10KHZ)

≤30
(100KHZ)

<7
(10KHZ)

≤7
(10KHZ)

Relative temperature
coefficient

αμi

×10-6
1/K

-0.5~1.5
(-30~20℃)
-0.5~1.5
(20~70℃)

 

 

 

Stauration flux density

Bs

mT

400
(1194A/m)

380
(1194A/m)

360

360
(1194A/m)

Remanence

Br

mT

90

120

100

100

Coercive force

Hc

A/M

7.2

5

4.4

4.4

Curie temperature

Tc

>120

>120

115

>100

Resistivity

ρ

Ω·m

0.05

0.2

0.15

0.15

Density

d

Kg/m3×103

4.9

4.9

4.95

4.95

Typical products of Power MnZn soft ferrite materials

Type

WM2K5

WM2K3

WM2K4

WM1K4

WM1K8

Initial permeability μi

2500±25%

2300±25%

2400±25%

1400±25%

1800±25%

Power loss Pc
mW/cm3

(25kHz,
200mT)

25℃

60℃

80℃

130

120

 

 

 

90

80

 

 

 

100

70

 

 

 

(100kHz,
200mT)

25℃

60℃

100℃

120℃

700

600

600

 

 

500

450

400

 

 

600

410

300

 

110

 

500

380

 

 

(500kHz,
50mT)

25℃

60℃

100℃

 

 

 

130

 

 

 

 

80

 

 

 

 

80

4.2(16kHz,150mT)

Saturation Magnetic Flux Density
(H=1194A/m)
Bs mT

 

25℃

100℃

510

510

500

470(H=1600A/m)

510

390

390

390

380

390

Remanence Br mT 25℃

117

95

110

140

170

Coercivity Hc A/m 25℃

14

14.3

13

36.5

16

Curie Temperature Tc/℃

230

215

215

240

240

Density d g/cm3

4.8

4.8

4.8

4.8

4.8

Electrical Resistivity ρ Ω-m

10

6.5

6.5

 

3

Typical products of Wide frequency high μi MnZn soft ferrite materials

Items

Initial Permeability
mi

Saturation Magnetic Flux Density
Bs(mT)

Coercivity
Hc(A/m)

Br(mT)

Density
(g/cm3)

Curie Temperature Tc(℃)

WFH1

5500±25%

25℃>400

6

70

≥4.8

≥140

WFH2

7500±25%

25℃>400

6

80

≥4.8

≥130

WFH3

10000±25%

25℃>400

5

120

≥4.8

≥120

Remark

Custom-build specs is welcomed.