Halogen-Free Epoxy Glass Cloth Lamiante Sheet Fr4 for Thermal and Electrical Applications

Min.Order: 500

Product origin: Haikou, Hainan, China

Infringement complaint:

Complaint

US$ 3.3 ~ 4.6

Description

NEMA FR-4
Epoxy Glass Cloth Laminate Sheet

1.DESCRIPTION

FR-4 is created from alkali-free glass cloth that has been impregnated with epoxy resin by hot processing, It has high mechanical and electrical properties, good heat resistance and humidity resistance, so it is widely used in mechanical, electronic and electrical equipment as components of insulation parts.

sizes: 1020 X 1220mm/1220 X 2040mm / 1230X2470mm

2.FEATURES

Very low hygrometric susceptibility	Workable while cold up to 3mm.
Good dielectric properties	Higher mechanical properties when cold
Small losses at high frequency	High resistance to flame ( V-0 )

3.APPLICATIONS

Sensitive electronic equipment.
Circuit Board manufacturing.
Relays and Switches.
Communication systems.
Insulators for electrical equipment and appliances.

4. TECHNICAL PARAMETER

ITEMS	CONDITIONS	TEST METHOD	VALUES
Thermic endurance	in transformer oil for 4 hours	IEC 60893-2-7.1	130ºC ( B)
Martin's Temp. ( perpendicular )	--	--	200ºC min.
Specific weight	20ºC	IEC 60893-2	1.80 - 2.0 g/cm3
Water absorption	24 h	IEC 60893-2-8.2	1.0 mm - 18 mg
Flexural strength ( perpendicular )	23 ± 2ºC	IEC 60893-2-5.1	340 MPa min.
Flexural strength ( perpendicular )	155ºC	IEC 60893-2-5.1	170 MPa min.
Charpy impact strength ( parallel )	23 ± 2ºC	IEC 60893-2-5.4.2	33 KJ/m2 min.
Izod impact strength ( parallel )	23 ± 2ºC	IEC 60893-2-5.4.3	34 KJ/m2 min.
Electric strength ( perpendicular )	in transformer oil at 90 ± 2ºC	IEC 60893-2-6.1	≤3.0 mm 10.2KV/mm min.
Break down voltage ( parallel )	in transformer oil at 90 ± 2ºC	IEC 60893-2-6.1	> 3.0mm 35 KV min.
Insulating resistances After immersion in water	23 ± 2ºC	IEC 60893-2-6.3	5.0 X 108W min.
Flammability	UL94	IEC 60893-2-7.2	V-0

FAQ
Q: Are you trading company or manufacturer ?
A: Both

Q: How long is your delivery time?
A: Generally it is 3-5 days if the goods are in stock. or it is 5--15days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ?is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ? A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shipment.

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