• VT-441C Laminate/Prepreg

    UL Approval: E214381 Version: B1 01/09/2018 /127/128

    General Information

    • Phenolic Cured System
    • Halogen free & Mid-Tg FR4.1
    • CTI 400V
    • UV Blocking
    • CAF Resistance
    • Low Z-CTE
    • Excellent Thermal Reliability

    Application

    Automotive, Instrumentation, Communication Equipment, Electronic Game Machine, White Goods, etc.

    Availability

    • Core Thickness: 0.004” (0.1mm) to 0.200” (5mm), available in sheet or panel form
    • Copper Foil: 1/2oz to 12oz
    • Prepregs are available in roll or panel form
    • E-Glass styles: 7628, etc.
    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

    Properties Test Method Units Specification Typical Value
    Thermal Properties
    Tg IPC-TM-650 2.4.25 °C 145 minimum 150
    Td ASTM D3850 °C 325 minimum 385
    T260 IPC-TM-650 2.4.24.1 Minute 30 minimum >40
    T288 IPC-TM-650 2.4.24.1 Minute 5 minimum >10
    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 IPC-TM-650 2.4.24 ppm/°C 300 maximum 185
    Total Expansion (50~260°C) IPC-TM-650 2.4.24 % 3.5 maximum 2.1
    MOT UL 94 °C - 130
    Electrical Properties
    DK @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 5.4 maximum 4.4
    DF @ 1GHz RC 50% IPC-TM-650 2.5.5.9 - 0.035 maximum 0.014
    Volume Resistivity After Moisture Resistance IPC-TM-650 2.4.17.1 MΩ-cm 1.0E+4 minimum 5.0E+8
    E-24/125 IPC-TM-650 2.4.17.1 MΩ-cm 1.0E+3 minimum 5.0E+6
    Surface Resistivity After Moisture Resistance IPC-TM-650 2.4.17.1 1.0E+4 minimum 5.0E+7
    E-24/125 IPC-TM-650 2.4.17.1 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 1 (400~600)
    Arc Resistance ASTM D495 Second - 187
    Mechanical Properties
    Peel Strength (1oz) As received IPC-TM-650 2.4.8 lb/in (N/mm) - 7~9 (1.2~1.6)
    After thermal stress IPC-TM-650 2.4.8 lb/in (N/mm) 6 (1.05) minimum 7~9 (1.2~1.6)
    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 0.18
    Flammability UL-94 Rating V0 minimum V0

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

    Published on: 01/09/2018