High Electric strength Fr4 Epoxy Sheet Rohs certification and environmental have no harmful component
FR4 (or FR-4) is a NEMA grade designation for glass-reinforced epoxy laminate material. FR4 is a composite material composed of woven fiberglass cloth with an epoxy resin binder that is flame resistant (self-extinguishing).
Sheeet Size:1020*1220;1220*2040
UL certification: E344098
Feature:
High precision for the tolerance
Excellent Fire Retardant(UL 94 V-0 Grade)
Excellent Voltage Resistance(electric strength ≥16KV/mm)
Excellent Water Resistance(Water absorption ≤0.2%)
Excellent Heat Resistance(Class F)
Excellent thermal impact resistance(Temp.Index:-273℃ to +155℃)
Excellent mechanical processability & high degree of automation processing
RoHS,Reach Certified products
Application:
High Electric strength Fr4 Epoxy Sheet can be used as the insulating structure parts in class B-h electric motors,electric equipments,which has flame resistance requirements or not,or other applications.
Hong Cheng Grade | HC-FR-4 | |||
IEC 893/EN 60893 Grade | EPGC 202 | |||
ANSI (NEMA) Grade NEMA LI-1 | FR-4 | |||
DIN 7735 | Hgw2372.1 | |||
JIS GRADE | EL-GEF | |||
Item | Test method | Unit | Typical Values | |
Physical Properties | Color | Visual inspection | - | Light green / yellow |
Specific Gravity | IEC 60893-2:2003 | g/cm3 | 1.90 - 2.15 | |
Water absorption | ISO 62:2008 | % | <0.3 | |
Electrical Properties | Electric strength ┴ | IEC 60893-2:2003 | KV/mm | ≥ 14(3.0mm) |
Breakdown Voltage // | IEC 60893-2:2003 | KV | ≥ 60 | |
Volume Resistivity | IEC 60093:1980 | Ω.m | ≥ 1.0×1012 | |
Surface Resistivity | IEC 60093:1980 | Ω | ≥ 1.0×1014 | |
(1 MHZ) Dielectric constant | IEC 60893-2:2003 | ﹍ | 4.0-5.5 | |
(1MHZ)Dissipation Factor | IEC 60893-2:2003 | ﹍ | 0.04-0.05 | |
Proof Tracking Index PTI | IEC 60893-2:2003 | V | ≥ 200 | |
Insulation resistance after immersion 24Hrs in Water | IEC 60893-2:2003 | Ω | ≥ 5×1010 | |
Mechanical Properties | Flexural Strength ┴ | IEC 60893-2:2003 | MPa | ≥ 340 |
Charpy Impact strength // | IEC 60893-2:2003 | KJ/m2 | ≥60 | |
TensileStrength | IEC 60893-2:2003 | MPa | ≥300 | |
//Bond Strength // | IEC 60893-3-4:2003 | N | ≥8000 | |
Compressive Strength┴ | IEC 60893-2:2003 | MPa | ≥ 350 | |
Flame Resistance Properties | Flame resistance | IEC 60893-2:2003 | ﹍ | V-0 |
Temperature Index | IEC 60085:2004 | ℃ | 155 | |
Toxicant Content | E662 | ﹍ | Low | |
Others | Acetone Resistance | boiled | Min | 30(OK) |
High Electric strength Fr4 Epoxy Sheet used in rail traffic
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