• VT-462SH Laminate/Prepreg

    UL Approval: E214381 Version: Prelim 1 08/04/2021

    General Information

    • Halogen free & High Tg
    • Low Dk & Very Low Loss
    • Excellent Thermal Reliability

    Application

    • High Speed Networking Equipment
    • IC Tester
    • High Frequency Measuring Instruments and Devices

    Availability

    • Core Thickness: 0.002” (0.05mm) to 0.020” (0.5mm), available in sheet or panel form
    • Copper Foil: 1/3oz to 3oz
    • Prepregs are available in roll or panel form
    • E-Glass styles: 2116, 2113, 1078, 106, etc.

    Note: Note: For cores ≤ 0.008”, it is recommended to use the reverse treated copper or HVLP copper due to the low profile. The peel strength for low profile foil is ≈1-2 lbs/in (0.35 Kg/m) less than standard foil.

    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

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg DMA IPC-TM-650 2.4.24.4 °C 170 minimum 240
    TMA IPC-TM-650 2.4.24 °C 170 minimum 190
    Td ASTM D3850 °C 340 minimum 430
    T288 IPC-TM-650 2.4.24.1 Minute 15 minimum >120
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s >600
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C 60 maximum 40
    After Tg IPC-TM-650 2.4.24 ppm/°C 300 maximum 220
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % 3.5 maximum 2.2
    Electrical Properties
    Dk (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 5.2 maximum 3.6
    @ 10GHz Cavity Resonator - - 3.5
    Df (RC 50%) @ 1GHz IPC-TM-650 2.5.5.9 - 0.035 maximum 0.0029
    @ 10GHz Cavity Resonator - - 0.005
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.5.17.1 MΩ-cm 1.0E+4 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 1372 (54)
    Dielectric Breakdown IPC-TM-650 2.5.6 KV 40 minimum 60
    Comparative Tracking Index (CTI) ASTM D3638 Rating (Volt) - Grade 3 (175~250)
    Arc Resistance ASTM D495 Second 60 minimum 124
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 4.0 (1.05)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 4.0 (0.70) minimum 4.0 (1.05)
    Flexural Strength Warp IPC-TM-650 2.4.4 KPsi (MPa) 60 (415) minimum 80 (560)
    Fill IPC-TM-650 2.4.4 KPsi (MPa) 50 (345) minimum 65 (450)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.80 maximum 0.10
    Flammability UL-94 Rating V-0 minimum V-0

    All test data provided are typical values 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.

    Published on: 08/04/2021

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