Dvd player pcb board fr4
It has high mechanical property and dielectric property, good heat resistance and moisture resistance and good machining property.
Electrical machinery and electrical equipment are used as parts of insulation structure, including various types of insulating carbon film printed circuit board of FPC reinforced electric appliance, PCBS for computer drilling die and fixture (PCB test rack), which can be used in humid environment and transformer oil
Soon, our industry new pollutant emission standards, is about to come on all the enterprises should take this opportunity to actively adopt advanced sewage treatment technology, water reuse technology, clean production technology, the traditional process of original rectification, so as to make our company more energetic, quickly remove pollution enterprise's hat.
FR - 4 epoxy glass fiber board (epoxy plate), the main material for imports half curing film, color white, yellow, green, under the normal temperature of 150 ℃ still has high mechanical strength, good electrical properties under dry and wet state, flame retardant, used in electrical, electronic and other industries insulation structure parts, using imported raw materials, domestic compressor and elaborate manufacture standard process;The main specifications are 1000* 2000mm * 1020mm*1220mm, because of the advantages of raw materials, to ensure quality and cheap, timely delivery, a stable customer base at home and abroad, and enjoy a high reputation.
Vertical layer to the bending strength A: normal: E - 1/150150 + / - 5 ℃ or greater 340 mpa
Parallel layer impact strength (simply supported beam method) : greater than or equal to 230KJ/m
After flooding (D - 24/23) insulation resistance: 108 Ω acuity 5.0 x
Vertical layer to the electric strength (in the middle of 90 + 2 ℃ for transformer oil, thickness 1 mm) : 14.2 MV/m or higher
Parallel layer to the breakdown voltage (90 + 2 ℃ in the transformer oil) : 40 kv or higher
Relative permittivity (50Hz) : 5.5
Relative dielectric constant (1MHz) : 5.5
Dielectric loss factor (50Hz)
Dielectric loss factor (1MHz)
Water absorption (d-24/23, thickness of 1.6mm) : less than or equal to 19mg
Density: 1.70 to 1.90 g/cm after