TDK EE320x250x20 Manual Do Utilizador

(2/6)

002-01 / 20071116 / e16_1.fm

• All specifications are subject to change without notice.

• Large size ferrite cores developed for reactors and transformers used in high power units.

• Please contact us for machinability of non-standard special forms.

• 1(mT)=10(G),1(A/m)=0.012566(Oe)

Material

PE22

PC40

Initial permeability

µ

i

[23°C]

1800

2300

Curie temperature

T

c

°C

>200

>200

Saturation magnetic flux density 
H=1194A/m 

B

s

[23°C]
[100°C]

mT

510
410

500
380

Remanent flux density

B

r

[23°C]

mT

140

125

Coercive force

H

c

[23°C]

A/m

16

15

Core loss

25kHz, 200mT
100kHz, 200mT

P

cv

[100°C]

kW/m

3

80
520

70
420

Electrical resistivity

ρ

Ω • m

3

6.5

Approximate density

d

app

kg/m

3

4.8

× 10

3

4.8

× 10

3

Thermal expansion coefficient

α

1/K

12

× 10

–6

12

× 10

–6

Thermal conductivity

κ

W/mK

5

5

Specific heat

C

p

J/kg • K

600

600

Bending strength

δ

b3

N/m

2

9

× 10

7

9

× 10

7

Young’s modulus

E

N/m

2

1.2

× 10

11

1.2

× 10

11

Magnetostriction

λs

–0.6

× 10

–6

–0.6

× 10

–6

150

200

100

50

0

120

100

80

60

40

20

0

Temperature(

˚

C)

P

cv

( kW/m

3

)

PC40

PE22

25kHz-200mT

800

600

400

0

120

100

80

60

40

20

0

Temperature(

˚

C)

P

cv

( kW/m

3

)

PC40

PE22

100kHz-200mT