Product Name: Epoxy Glass Cloth Laminate Sheet Fr4 Model NO.: FR4 Brand: Hjh Color: Green Certification: ISO9001 Classification: Organic Insulating Material Maximum Voltage: 20KV~100KV Thermal Rating: B 130 Material: Fiberglass Chemistry: Organic Insulation Type: Insulation Sheet Application: Insulators, Electrical base, Shell, Motor, Switch baseplate Trademark: HJH Transport Package: Pallet Specification: Metric Ton Origin: China HS Code: 3920999090 Product Description 1.FEATURESVery low hygrometric susceptibilityGood dielectric propertiesExcellent mechanicalstrength Small losses at high frequencyHigh flameresistance UL94 V0 ( FR4 & FR5 only) 2.APPLICATIonSSensitive electronic equipment.Circuit Board manufacturing.Relays and Switches.Communication systems.Insulators for electrical equipmentand appliances.3.TECHNICAL PARAMETER ITEMSUnit 3240NEMA G10NEMAFR4NEMA G11NEMA FR5Thermal endurance--ºC130 ( B)130 ( B)130 ( B)155 ( F)155 ( F)Martin's Temp( perpendicular )≥ºC200200200175260Specific weight@ 20ºCg/cm31.70 - 1.901.70 - 1.901.80 --201.70-1.901.70-1.90Water absorptionfor 24 hmg1.2mm - 181.5mm -- 191.0mm -- 181.5mm -- 191.2mm - 18Flexural strength(perpendicular)23±2ºC≥MPa340340340340340155ºC≥170170170170170Impact strength (Charpy)≥KJ/m23333333333Impact strength (Izod)≥KJ/m23434343434Electrical strength ≥KV/mm≤3.0 mm, 10.2≤3.0 mm, 10.2≤3.0 mm, 10.2≤3.0 mm, 10.2≤3.0mm, 10.2Breakdown voltage ≥KV>3.0mm, 35>3.0mm , 40>3.0mm, 35>3.0mm, 40>3.0mm, 35Insulating resistances≥W5.0X 1085.0X 1085.0X 1085.0X 1085.0X 108Flammability------UL 94 V0--UL 94 V0