Virtual Exhibition

MATERIAL CEM-3

Parameters

 

Test conditions

Units of measure

Values

 

Superficial resistance

at the increased humidity

F

MOhm

> 1000000

 

 

at the increased temperature

E-24/125

 

 

 

Volume resistance

at the increased humidity

F

MOhm * cm

> 10000

 

 

at the increased temperature

E-24/125

 

> 1000

 

Dielectric breakdown

 

D-48/50 + D-0.5/23

KV

> 40

 

Dielectric permeability, for 1MHz

C-40/23/50

 

< 5.4

 

Tangent of angle of dielectric losses, for 1MHz

C-40/23/50

 

< 0.035

 

Arc resistance

 

D-48/50 + D-0.5/23

сек

> 60

 

Tensile strength for copper foil thickness 35 mkm

average

A

N/mm

> 1.31

 

 

after thermal influence

A

N/mm

> 1.31

 

The requirement at the soldering

 

288 C, 20 sec

 

it isn't stratified

 

 

288 C, 20 sec

 

 

 

Durability on a bend

longitudinal

A

MPa

0.79-1.55

> 340

 

 

 

 

1.57-2.36

> 270

 

cross

A

MPa

0.79-1.55

> 270

 

 

 

 

1.57-2.36

> 220

Water absorption

 

E-1/105 + des + D-24/23

%

 

 

 

 

E-1/105 + des

%

0.79-1.55

0.25

 

 

 

 

1.57-2.36

0.25

Combustibility

 

A & E-1/105 + des

 

94V-0

 

Stability of the sizes

 

E-4/105 + des + E-2/150

mkm/cm

 

 

 

Symbols in test conditions have the following interpretation:

A – without preliminary preparation

С - preliminary preparation in damp air

D - preliminary preparation in the distilled water

E - preliminary preparation at this temperature

F - testing after a series of heatings by means of hot damp air

des - preliminary preparation in the form of drying in the drying camera

T - testing at this temperature