B68450 datasheet(5/6 Pages) EPCOS

5 / 6 page

563 08/01

Physical properties (material values defined on 0,2 mm thick film)

1) T = 25

°C in accordance with IEC 51 (CO) 282

2) T = 23

°C and 50 % r.h.

3) UL 94, flame class V0 (listed E 140 693)

Material

Symbol

Unit

C350

C3513)

Initial permeability1)

f = 1 MHz

µi

± 20 %

Flux density (near saturation)1)

H = 25 kA/m

f = 10 kHz

255

Remanent flux density1)

H = 25 kA/m

f = 10 kHz

Coercive field strength1)

H = 25 kA/m

f = 10 kHz

A/m

600

Relative loss factor1)

f = 10 MHz

f = 1 GHz

tan

δ/µi

< 0,005

< 0,400

< 0,005

< 0,400

Hysteresis material constant

ηB

10-3/mT

< 2

Temperature coefficient1)

α = ∆µ/µ∆T

1/K

< 5 · 10–5

Density

kg/m3

2930

Resistivity 1)

f = 1 kHz

f = 10 MHz

ρΩm

500

100

500

100

Dielectric constant1)

f = 1 kHz

f = 10 MHz

εr

700

Dielectric strength

kV/mm

0,8

Max. operating temperature

Tmax

°C

120

200

Tensile strength2)

σZ

N/mm2

1,5

2,5

Tearing resistance2)

%25

Compressibility2)

N/mm2

B68450 … B68452

C 350, C 351

FPC Film

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