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    日日摸夜夜添无码,久操影视,亚洲欧洲日韩免费无码h,99精品热6080yy久久,午夜亚洲乱码伦小说区69堂,亚洲欧美日韩精品,亚洲国产成人VA在线观看,亚洲国产第一页在线观看
    Welcome to the official website of Legret Metal Company
    Focus on electronic welding for 20 yearsDONGGUAN LEGRET METAL.,LTD
    National consultation hotline:+86 135-2799-2739
    Contact US
    mobile phone: 135-2799-2739
    Service hotline: 0769-38893080
    Email: anson@dglzd.com
    Address: Dongguan lvzhidao Metal Co., Ltd
    Contact person: Manager Zeng
    LED Solder paste

    LED Solder paste L909

    Product parameters

    ★L(fēng)oose reflow process window
    ★Excellent wetting and tin eating ability
    ★L(fēng)ow bubble and void ratio
    ★The adhesive force can be maintained for a long time
    ★Transparent residue

    Scope of application

    Suitable for SMT industry PCB surface resistance, capacitance, IC and other electronic components welding
    Selection of tin powder

    Specifications

    Maximum limit

    Greater than this value less than 1%

    Less than 80% between these values

    Less than 90 percent

    Less than 10%

    Recommend suitable process

    280μm75μm75-45μm——20μm

    pitch≥0.5mm

    Inner diameter of needle≥0.8mm

    350μm45μm45-25μm——20μm

    pitch≥0.4mm

    Inner diameter of needle≥0.6mm

    4
    40μm
    38μm
    ——38-20μm20μm

    pitch≥0.4mm

    Inner diameter of needle≥0.5mm

    528μm
    25μm
    ——25-15μm15μm

    pitch≥0.3mm

    Inner diameter of needle≥0.4mm




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