• VT-901 Laminate / Prepreg

    UL Approval: E214381 Version: 23/03/2024 /40/41/42/43

    General Information

    • Tg 250℃
    • High Td 408
    • Low Z-axis CTE
    • Non-Brominated Chemistry
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    Application

    • Chip Manufacturers
    • Engine/Flight Controls
    • Power Supply/Backplane
    • Military & Aerospace
    • Burn-in Board
    • Downhole Drilling

    Availability

    • Core Thickness: 0.002” (0.05mm) to 0.125” (3mm), available in sheet or panel form
    • Copper Foil: 1/4oz to 6oz
    • Prepregs are available in roll or panel form
    • E-Glass styles: 7628, 1506, 2113, 2313, 3313, 2116, 1080, 106 etc
    Storage Condition Temperature Below 23°C (73°F) Below 5°C (41°F) Room
    Relative humidity Below 55% RH / /
    Shelf Life 3 months 6 months 24 months (airproof)

    The prepreg exceeding shelf life should be retested.

    Properties Sheet IPC-4101E /40 /41

    Thermal Properties
    Tg DSC IPC-TM-650 2.4.25 °C - -
    TMA IPC-TM-650 2.4.24 °C 200 minimum 250
    Td ASTM D3850 °C - 408
    T260 IPC-TM-650 2.4.24.1 Minute - >60
    T288 IPC-TM-650 2.4.24.1 Minute - >60
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s >1200
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C - 50
    After Tg IPC-TM-650 2.4.24 ppm/°C - 145
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % - 1.2
    X-Y CTE IPC-TM-650 2.4.24 ppm/°C - 11~12
    MOT UL 94 °C - 140
    Electrical Properties
    Dielectric Constant @ 1GHz RC 40% IPC-TM-650 2.5.5.9 - 5.4 maximum 4.05
    Dissipation Factor @ 1GHz RC 40% IPC-TM-650 2.5.5.9 - 0.035 maximum 0.012
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.4.17.1 MΩ-cm 1.0E+6 minimum 5.0E+8
    E-24/125 IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+6 minimum 9.0E+8
    Surface Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 1.0E+6 minimum 5.0E+7
    E-24/204 IPC-TM-650 2.5.17.1 1.0E+6 minimum 1.0E+8
    Electrical Strength IPC-TM-650 2.5.6.2 Volt/mil (KV/mm) 762 (30) minimum 1200~1400 (54)
    Dielectric Breakdown IPC-TM-650 2.5.6 KV 40 minimum 60
    Comparative Tracking Index (CTI) ASTM D3638 Rating (Volt) - Grade 4 (100~175)
    Arc Resistance ASTM D495 Second 120 minimum 150
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 6~9 (1.05~1.58)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 5.14 (0.90) minimum 6~9 (1.05~1.58)
    Flexural Strength Warp IPC-TM-650 2.4.4 KPsi (MPa) 60 (415) minimum 87 (600)
    Fill IPC-TM-650 2.4.4 KPsi (MPa) 47 (325) minimum 72 (500)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 1.0 maximum 0.28
    Flammability UL-94 Rating HB minimum HB

    Note: All test data provided are typical values and are not intended to be specification values.

    Published on: 23/03/2024

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