• VT-547C Laminate/Prepreg

    UL Approval: E214381 Version: 30/10/2025 /127/128/130

    General Information

    • Phenolic Cured System
    • Halogen Free
    • High Tg 
    • No ANSI & MOT 180˚C
    • CTI 600V
    • UV Blocking
    • High Voltage CAF Resistance
    • Low Z-CTE
    • Excellent Thermal Reliability 

    Application

    • PEV & HEV Automotive
    • BAPV
    • Instrumentation
    • Communication Equipment
    • Electronic Game Machine
    • White Goods

    Availability

    Core Thickness: 0.004” (0.10mm) to .200” (5mm), available in sheet or panel form Copper Foil: 1/2oz to 6oz Prepregs are available in roll or panel form E-Glass styles: 7628, 2116, 108

    Storage Condition

    Properties Prepreg
    Storage Condition Temperature Below 23˚C (73˚F) Below 5˚C (41˚F)
    Relative Humidity Below 55% RH /
    Shelf Life 3 months 6 months

    Note: The prepreg exceeding shelf life should be retested.

    IPC-4101E /127 /128 /130

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg IPC-TM-650 2.4.25 °C 170 minimum 190
    Td ASTM D3850 °C 340 385
    T260 IPC-TM-650 2.4.24.1 Minute 30 minimum >60
    T288 IPC-TM-650 2.4.24.1 Minute 15 minimum >20
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s >200
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C 60 maximum 35
    After Tg ppm/°C 300 maximum 185
    Total Expansion (50~260°C) % 3.5 maximum 2.1
    MOT UL 746E °C - 180
    Electrical Properties
    Dk @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 5.4 maximum 4.6
    Df @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 0.035 maximum 0.011
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+6 minimum 5.0E+8
    E-24/125 MΩ-cm 1.0E+3 minimum 5.0E+6
    Surface Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ 1.0E+4 minimum 5.0E+7
    E-24/125 MΩ 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 0 (>600)
    Arc Resistance ASTM D495 Second 60 minimum 187
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 6 (1.05)
    After thermal stress 6 (1.05) minimum 6 (1.05)
    Flexural Strength Warp IPC-TM-650 2.4.4 KPsi (MPa) 60 (415) minimum 72 (500)
    Fill 50 (345) minimum 58 (400)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.80 maximum 0.15
    Flammability UL-94 Rating V-0 minimum V-0

    All test data provided are typical and not intended to be specification values. Disclaimer: The information and data contained in this technical literature is based on data and knowledge correct at the time of publishing/printing and is believed to be accurate and is offered in good faith for the benefit of the user. The user should make his own tests to verify the suitability of this product for any application before its use. All data are typical values only and subject to change without notice.

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