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 High 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

100

(100kHz, 200mT)	25℃
	60℃
	100℃
	120℃

700

600

500

450

400

600

410

300

110

500

380

(500kHz, 50mT)	25℃
	60℃
	100℃

130

4.2(16kHz,150mT)

Saturation Magnetic Flux Density (H=1194A/m) Bs mT		25℃
		100℃

510

500

470(H=1600A/m)

510

390

380

390

Remanence Br mT 25℃

117

110

140

170

Coercivity Hc A/m 25℃

14.3

36.5

Curie Temperature Tc/℃

230

215

240

Density d g/cm3

4.8

Electrical Resistivity ρ Ω-m

6.5

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.