COPPER-CLAD  MATERIALS OF MICROWAVE APPLICATION:

Mark

Composition

Operating temperature range, °C

Applications

Dimensions

ФАФ-4Д

Sheet material made of varnished cloth layers F-4D-E01-A 1st grade, coated with electrolytic electro-resistant cop-per foil.

From –60 up to +260

Intended for production of printed circuit and stripline boards of mi-crowave range, antennas, and other products of microwave technology.

(500±5) х (500±50) mm

thickness – 1,0-5,0 mm

Standarts, normative documents

Material

FAF-4D

GOST 21000-81

GOST, TU

NEMA-L1 1-1989, par. 8

DIN EN 60249
IEC article 60249

Properties

Test method

Units

Value

Adhesion strength of the foil to the 10 mm stripe base, min

GOST 21000-81
p.5.4.

Н

17,5

Dielectric loss tangent at 10⁶ Hz, max 

GOST 22372-77 and
p.5.5 GOST 21000-87

1,0×10^-3

Dielectric loss tangent at 10¹⁰ Hz, max

GOST 8.544-86
GOST 8.015-72

а) in initial conditions

1,8×10^-3

b) after conditioning for 24 h at 23 ° C and 93% relative humidity

2,0×10^-3

Dielectric conductivity at 10⁶ Hz

GOST 22372-77 and
p.5.5 GOST 21000-81

2,5±0,2

Dielectric conductivity at 10¹⁰ Hz in an electric field

GOST 8.544-86
GOST 8.015-72

а) in initial conditions

2,7±0,2

b) after conditioning for 24 h at 23°С and 93% relative humidity

2,8±0,2

Type of combustibility

GOST 12.1.044-89

Hardly combustible

Electrical volume resistivity, min

GOST 6433.2-71

Ohm•m

1,0×10¹³

Electrical surface resistivity, min

GOST 6433.2-71

Ohm

1,0×10¹⁴

Water absorption, max

GOST 4650-80

%

0,005

Change in linear dimensions, max
- After etching of foil
- After thermostating at t 200 ° C for 2h

GOST 26246.0-89,  p.3.10

%

0,03
0,05

Temperature coefficient of linear expansion х10^-5, °С^-1 , max

GOST 26246.0-89, p.4.6

7,0

Breaking strength, min

GOST 11262-80

MPa

65

Class of arc resistance

GOST 10345.2-78

seconds

180

Tracking index

GOST 27473-87

В

Control TI 550