Performance Characteristics Of Black Fr4 Board

7 month ago

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SHENZHEN XIONGYIHUA PLASTIC INSULATION LTD

10 year

Product details

Product Composition

Composite materials laminated by epoxy resin and glass fiber cloth are widely used in electronics, electrical, communications and other fields due to their excellent electrical properties, mechanical strength and heat resistance. The "FR" in FR4 stands for "Flame Retardant", indicating that it has good flame retardant properties.

Performance Characteristics

Electrical insulation: high insulation resistance, low dielectric constant, suitable for high-frequency circuits.

Mechanical strength: high bending strength and impact resistance.

Heat resistance: can remain stable at higher temperatures, usually 130°C to 140°C.

Flame retardancy: meets UL94 V-0 flame retardant standards and has good fire resistance.

Chemical resistance: good resistance to most chemicals.

Dimensional stability: can remain dimensional stable under changes in temperature and humidity.

Application Fields

PCB manufacturing: FR4 is the main material for manufacturing printed circuit boards (PCBs) and is widely used in electronic devices.

Electrical insulation: used for insulating components of electrical equipment such as transformers, relays, switches, etc.

Communication equipment: used for high-frequency communication equipment such as antennas and filters.

Industrial control: used for circuit boards and insulating components in industrial control systems.

Automotive electronics: used for automotive electronic control units (ECUs) and sensors, etc.

Aerospace: used for high-performance circuit boards in aerospace electronic equipment.

Property	Bakelite sheet	FR4 sheet
Base Material	Phenolic resin + wood pulp/cotton fabric	Epoxy resin + glass fiber
Cost	Lower	Higher
Temperature Resistance	100-130°C	130-180°C (higher for epoxy board)
Electrical Performance	Medium/Low Voltage Insulation	High-Frequency/High Voltage Insulation (superior)
Typical Applications	Mechanical parts, medium/low voltage electrical devices	PCB substrates, high-end insulating components

Comparison Table: 3240 Epoxy Sheet vs. FR4 Sheet
Characteristics	3240 Epoxy Sheet	FR4 Sheet
Main Applications	Structural insulation parts, mechanical support	Printed circuit board (PCB) substrate
Key Processing Techniques	Mechanical processing (cutting, drilling)	PCB processes (etching, copper plating, etc.)
Key Performance Focus	Mechanical strength, insulation	High-frequency signal transmission, dielectric stability
Typical Thickness	0.5mm–50mm (thicker)	0.2mm–3.2mm (thinner)

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SHENZHEN XIONGYIHUA PLASTIC INSULATION LTD

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10 year

Main Product: POM SHEET, FR4 Sheet, Nylon Sheet, Bakelite Sheet, ABS Sheet , PTFE Sheet

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