СТНФ

Glass Epoxy Laminate STNF

Today great demand the material such as FR-4 which guarantee high production characteristics and convenience of processing uses. The scientific and technical centre of factory has developed and has introduced in production a glass-reinforced laminate heat-resistant non-combustible copper-clad STNF (analog FR-4), made on the basis of glass-wool blanket and two-function brominated epoxy resins. STNF guarantees practically all indexs FR-4 except for one - price: its price is lower FR-4 (МI1222) on 10 %. "Moldavizolit" - unique factory producing economic variant FR-4.

Conformity to standards

ТU 16-503.161-83

NEMA LI-1	FR-4
IEC 249	FV-EP-GC-Cu
DIN 40802	EP-GC-02

Technical Characteristics

			STNF
Parameters	Test conditions	Guaranteed values	Typical values
*Temperature*
Glass transition temperarure, Тg, ^o C			110± 5
Electrical
Permittivity at 1MHz	С 96/40/93+ 1/23/75	4,3	4,3
Dissipation Factor at 1MHz	С 96/40/93+ 1/23/75	0,014	0,014
Surface Resistivity (Ohms), not less than	Е - 1/125	4,0 x 10¹⁰	4,0 x 10¹⁰
Volume Resistivity, not less than	Е - 1/125	2,0 x 10⁹	2,0 x 10⁹
Physical
Peel Strength, N/mm, not less than	normal conditions	6,3	6,3
	after heat shock (260 ^o С/30 sec)	5,4	5,4
	Е - 1/125	5,4	5,4
Solder Float, sec, not less than	260 ^o С	30	30
Bow/twist, %, not less than	normal conditions	2,3	2,3
Moisture absorption, not more than	D - 24/23	6,4	6,4
Flammability UL 94	normal conditions	V0	V0
punching		1,0	1,0
Sheet sizes, mm		1180х1030, 1220х1020, 1100x1000, 1010x900
Thickness, mm		0,8-3,0
Identification symbol

Application

STNF can be used for production of printed-circuit-boards of a high class of precision, surface mount.