• VT-447(B) Laminate/Prepreg

    UL Approval: E214381 Version: Rev. B5 29/12/2017 /127/128/130

    General Information

    • Halogen Free & High Tg
    • Black, Light Blocking
    • Low Z-CTE
    • UV Blocking

    Application

    Reinforcement for FPC, Mobile Phone, Smart Phone, Computer, Communication Equipment, Instrumentation, LED, Eletronic Game Machine, VCR, etc

    Availability

    • Core Thickness: 0.006” (0.15mm) to 0.040” (1mm), other thickness on request
    • Available in roll or panel form
    • Copper Foil: 1/4oz to 12oz
    • E-Glass styles: 7628, 1506, 2116, other glass fabric on request
    Properties Prepreg Laminate
    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 /127 /128 /130

    Properties Test Method Units Specfication Typical Value
    Thermal Properties
    Tg DSC IPC-TM-650 2.4.25 °C - -
    TMA IPC-TM-650 2.4.24 °C 170 minimum 180
    Td ASTM D3850 °C - 380
    T260 IPC-TM-650 2.4.24.1 Minute 30 minimum 60
    T288 IPC-TM-650 2.4.24.1 Minute - -
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s 150
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C - 45
    After Tg IPC-TM-650 2.4.24 ppm/°C - 190
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % - 2.3
    X-Y CTE IPC-TM-650 2.4.24 ppm/°C - 11~13
    MOT UL 94 °C - 130
    Electrical Properties
    DK (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 5.4 maximum 4.35
    DF (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 0.035 minimum 0.013
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+6 minimum 5.0E+8
    E-24/125 IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+3 minimum 5.0E+6
    Surface Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 1.0E+4 minimum 5.0E+7
    E-24/125 IPC-TM-650 2.5.17.1 1.0E+3 minimum 5.0E+6
    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 - 240
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 6~8 (1.05~1.40)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) - 6~8 (1.05~1.40)
    Flexural Strength Warp IPC-TM-650 2.4.4 KPsi (MPa) 60 (415) minimum 72 (500)
    Fill IPC-TM-650 2.4.4 KPsi (MPa) 50 (345) minimum 58 (400)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.80 maximum 0.35
    Flammability UL-94 Rating V0 minimum V0

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

    Published on: 29/12/2017

    Download TDS Datasheet