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Fr4 xaashida
FR4 ma aha magac shey ah, laakiin nooc ka mid ah fasal u adkaysi u adkaysiga dabka, oo matalaya qalabka resin ayaa iskiis u baabi'in kara marka rasaasta rasaasta. Hadda waxaa jira dhammaan noocyada alaabta fr4 ah oo adeegsanaya sida PCB, laakiin kuwa ugu weyn ayaa ka kooban resin resin, prefer iyo fiberlass.
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FR4 sheet
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Properties
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Unit
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Grade
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FR-4,Grade A
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Flexural strength perpendicular to laminations (A: under normal conditions E-1/150: 150±5 °C . Thickness:≥1.6mm)
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≥
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Mpa
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340
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Compression strength perpendicular to laminations
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≥
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Mpa
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350
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Impact Strength parallel to laminations (Charpy,Thickness:≥5mm)
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≥
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kJ/m2
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33
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Insulation Resistance after immersion in water (D-24/23)
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≥
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Ω
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5.0×108
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Dielectric strength perpendicular to laminations (in 90±2°C transformer oil, 1 mm in thickness)
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≥
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MV/m
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11.8
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Breakdown voltage parallel to laminations (in 90±2°C transformer oil)
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≥
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KV
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35
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Permittivity (50MHz)
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≤
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-
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5.5
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Dissipation factor (50Hz)
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≤
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-
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0.035
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Water absorption (D-24/23, 3mm in thickness)
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≤
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mg
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20
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Density
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g/cm3
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2.0
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Flammability
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Class
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V-0,V-1
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Color
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-
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Natural
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-
Brand:XYHMin. Dalbo:KilogramModel No:FR4-001Gaadiidka:Ocean,Land,AirBaakadaha:kartoonada iyo Sariiraha ama sida loo baahdo.Kartida Bixinta:100Tons per monthGoobta Asalka:Shenzhen, ShiinahaWax-soo-saarka:500Tons per monthG10 / EPGC 201 iyo FR4 / EPGC 202 Epoxy Fiberglass Maro FR4 waa koronto alkali-free galaas tolsan saldhig dhar-dharka impregnated epoxy resin binder by processing hoos cadaadiska iyo kulaylka, kuwaas oo leh awood aad u sarreeya oo farsamo, sifooyin...
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