• VT-42A Laminate

    UL Approval: E214381 Version: A2 28/12/2017 /21

    General Information

    • Dicy Cured System
    • Standard FR4.0 (Tg135℃)
    • UV Blocking

    Application

    Computer, Communication Equipment, TV, VCR, Electronic Game Machine, etc

    Availability

    Available Products List

    Thickness Overall (mm) Class L Tolerance (mil) Thickness Core (mil)
    1.0mm 1/1 +/- 3.9 36
    1.0mm H/H +/- 3.9 36
    1.2mm 1/1 +/- 5.1 45
    1.2mm H/H +/- 5.1 45
    1.5mm 1/1 +/- 5.1 57
    1.5mm H/H +/- 5.1 58
    1.5mm 1/0 +/- 5.1 58

    Note: Not for use in critical anti-CAF applications.

    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 /21

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg DSC IPC-TM-650 2.4.25 °C 110 minimum 135
    Td ASTM D3850 °C - 310
    T260 IPC-TM-650 2.4.24.1 Minute - 20
    T288 IPC-TM-650 2.4.24.1 Minute - 2
    Thermal Stress @ 288°C IPC-TM-650 2.4.13.1 Second Pass 10s 300
    Z-axis CTE Before Tg IPC-TM-650 2.4.24 ppm/°C - 50
    After Tg IPC-TM-650 2.4.24 ppm/°C - 250
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % - 3.75
    X-Y CTE IPC-TM-650 2.4.24 ppm/°C - 12~14
    MOT UL 94 °C - 130
    Electrical Properties
    DK @ 1GHz IPC-TM-650 2.5.5.9 - 5.4 maximum 4.2
    DF @ 1GHz IPC-TM-650 2.5.5.9 - 0.035 maximum 0.015
    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) - Class 3 (175~250)
    Arc Resistance IPC-TM-650 2.5.1 Second 60 minimum 240
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 10~12 (1.7~2.0)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 6 (1.05) minimum 9~12 (1.5~2.0)
    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) 50 (345) minimum 72 (500)
    Physical Properties
    Moisture Absorption IPC-TM-650 2.6.2.1 % 0.80 maximum 0.25
    Flammability UL-94 Rating V0 minimum V0

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

    2) Standard VT-42A products can not meet Anti-CAF requirement.

    Published on: 28/12/2017

    Download TDS Datasheet