• VT-4B Copper Base Laminate

    UL Approval: E214381 Version: B3 08/04/2018

    General Information

    • VT-4B3 Laminate: Thermal conductivity -- 3.0W/mK
    • VT-4B5 Laminate: Thermal conductivity -- 4.2W/mK
    • VT-4B7 Laminate: Thermal conductivity -- 7.0W/mK
    • Ceramic Filled
    • Halogen Free
    • Flammability UL94 V0
    • MOT 130℃

    Application

    • Ultra bright LED Substrate
    • Power Conversion
    • PDP, LED, Regulator for TV
    • Monitor Drives
    • Rectifier, Power Supply

    Storage Condition & Shelf Life

    Laminate
    Storage Condition Temperature Room
    Relative Humidity /
    Shelf Life 24 Months

    Designation of IMS Laminate

    170904-VT-4B-Cu New Designation.png

    Laminate Properties

    Item Test Method (IPC-TM-650) Unit VT-4B3 VT-4B5 VT-4B7
    50um 75um 100um 50um 75um 100um 50um 75um 100um
    Thermal Conductivity ISO 22007-2 W/m*K 3.0 4.2 7.0
    Thermal Impedance ISO 22007-2 ℃*in2/W 0.027 0.040 0.053 0.020 0.029 0.038 0.011 0.017 0.022
    Tg DSC 2.4.25 130 120 100
    Td TGA ASTM D3850 380 380 380
    Thermal Stress Solder Dip @ 288℃ 2.4.13.1 Minute >=5 >=5 >=5
    Hi-Pot Withstand DC 2.5.7.2 V 2000 3000 4000 2000 3000 4000 2000 3000 4000
    Breakdown Voltage AC 2.5.6.3 V 4000 7000 8000 4000 7000 8000 4000 7000 8000
    Dk @ 1MHz C-24/23/50 2.5.5.3 - 4.8 4.8 4.8
    Df @ 1MHz C-24/23/50 2.5.5.3 - 0.016 0.016 0.016
    Volume Resistance After Moisture 2.5.17.1 MΩ-cm 5.0E+8 5.0E+8 5.0E+8
    E-24/125 3.0E+7 3.0E+7 3.0E+7
    Surface Resistance After Moisture 2.5.17.1 2.0E+7 2.0E+7 2.0E+7
    E-24/125 5.0E+6 5.0E+6 5.0E+6
    Peel Strength (1oz) As received 2.4.8 Lb/in 11 7 4.5
    CTI As received ASTM D3638 V 600 600 600
    Flammability As received UL94 Rating V0 V0 V0
    RTI Electric UL94 130 130 130
    Mechanical UL94 130 130 130

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

    Availability

    Laminate

    Item VT-4B3 VT-4B5 VT-4B7
    Dielectric .002" (50um), .003" (75um), .004" (100um) .002" (50um), .003" (75um), .004" (100um) .002" (50um), .003" (75um), .004" (100um)
    Standard Size 18.11"*24.02" (460mm*610mm), 20.08"*24.02" (510mm*610mm), 20.98"*24.02" (533mm*610mm),
    Copper weight 1/3oz, Hoz, 1oz, 2oz, 3oz, 4oz, 6oz
    Copper Plate Thickness 1.0mm, 1.5mm, or as required
    Copper Plate Alloy C1100, or as required

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

    Ventec offers C1100 as a standard copper plate.

    Copper Plate Consideration

    Alloy Thermal Conductivity (W/m-K) CTE (ppm/℃) Density (g/cm3) Modulus (GPa) Yield Strength (MPa)
    Cu-C1100 386 17 8.9 44 310
    Al-5052H32 138 25 2.7 26 215

    Protective Film for Copper Plate

    Type Material Max Operation Temperature
    Standard PET 170℃
    High Temperature Polyimide 270℃

    Download TDS Datasheet