Gbólólólóhùn Asiri: Asiri rẹ ṣe pataki pupọ si wa. Ile-iṣẹ wa ṣe ileri lati ṣe sọ alaye ti ara ẹni si eyikeyi ifihan pẹlu awọn igbanilaaye rẹ.
Ms. Shelby Luo
Kini mo le ṣe fun ọ?
FR4 kii ṣe orukọ ohun elo kan, ṣugbọn iru ite ti ina ina, eyiti o duro fun awọn ohun elo Rsain le paarẹ ara ẹni ni nigbati o ba fidio. Bayi ni gbogbo awọn ohun elo F4 lo wa bi PCB, ṣugbọn awọn julọ ni akopọ ti o ṣepèkalẹ ti a ṣe, fi kun ati ọra-omi.
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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Iwe F4 FR4 nipataki lo bi awọn ẹya sibollication ni itanna, itanna ati awọn ile-iṣẹ miiran .
Awọn ẹya pataki:
Ifiweranṣẹ Farace
• agbara dilectictic giga
• resistance ọrinrin
• ooru sooro
• Resistance iwọn otutu: 180-200 ℃
• Labẹ iwọn otutu deede 150 ℃, o tun ni agbara ẹrọ giga.
Gbólólólóhùn Asiri: Asiri rẹ ṣe pataki pupọ si wa. Ile-iṣẹ wa ṣe ileri lati ṣe sọ alaye ti ara ẹni si eyikeyi ifihan pẹlu awọn igbanilaaye rẹ.
Fọwọsi alaye diẹ sii ki o le wọle si ọ ni iyara
Gbólólólóhùn Asiri: Asiri rẹ ṣe pataki pupọ si wa. Ile-iṣẹ wa ṣe ileri lati ṣe sọ alaye ti ara ẹni si eyikeyi ifihan pẹlu awọn igbanilaaye rẹ.