Suppression Material

Suppression Material

Propery

Unit

Sym-bol

61

52

51

44

46

43

31

72

77

78

73

75

76

J

Initial Perme-ability
@ B <10 gauss

µ

125

250

350

500

500

850

1500

2050

2000

2300

2500

5000

10000

5000

Flux Dencity

@Field Strengh

B

H

 2500

  250

   15

1200

4200

  420

   10

 800

3700

  370

   10

 800

3000

  300

   10

 800

3000

  300

   10

 800

2900

290

10

800

3900

390

5

400

5100

510

5

400

5100

510

5

400

4800

480

5

400

4500

450

5

400

4300

430

5

400

4000

400

5

400

4300

430

5

400

Resi-dual Flux Density

gauss

mT

Br

1000

100

3300

330

2500

250

1100

110

1900

190

1300

130

3200

320

1800

180

1800

180

1500

150

1650

165

1400

140

1800

180

1400

140

Coercive Force

Oersted

A/m

Hc

1.1

88

0.6

48

0.6

48

0.45

36

0.4

32

0.45

36

0.28

22

0.25

20

0.25

20

0.2

16

0.2

16

0.16

13

0.12

9.6

   0.16

     13

Loss Factor

@  Frequency

10^-6

^MHz

tan δ/µ

30

1

45

1

40

1

125

1

60

0.1

250

1

20

0.1

15

0.1

15

0.1

4.5

0.1

10

0.1

15

0.1

15

0.025

15

0.1

Temperature Coefficient of

Initial Permeability (20 – 70ºC)

%/ºC

T.C.

0.1

0.75

1.2

0.75

--

1.25

1.6

1,2

1.2

1

0.5

0.6

0.5

0.6

Curie Temperature

ºC

T.C.

˃300

˃250

˃170

˃160

˃140

˃130

˃130

˃200

˃200

˃200

˃160

˃140

˃120

˃140

Resistivity

Ohm-cm

p

10 ⁸

10 ⁹

10 ⁹

10 ⁹

10 ⁸

10 ⁵

3000

3000

100

200

100

300

50

300

Application Area                 EMI

                                              Suppres-                

                                              sion

Recommended                  
Frequency Range              MHz            

200-2000

200-1000

˂200

25-300

25-300

25-300

1-300

--

--

--

˂50

˂20

--

˂20