• ·瓦力·瓦力

    Solder Preforms
    Solder Preforms
    Tin-lead Solder Preforms

    With the increasing awareness of environmental protection among people, lead-free solder is gradually replacing lead containing solder. However, lead containing solder is still widely used in some fields due to its good wettability, reliability, and other characteristics.

    Product Selection
    Detailed Introduction
    Product List

    Features & Benefits

    ·  Good Mechanical Properties

    ·  Favorable thermal fatigue property

    ·  Excellent wetting properties

    ·  High reliability

    ·  Long-range reliability data support


    Typical Products

    Pb92.5Sn5Ag2.5 Preforms

    Pb92.5Sn5Ag2.5 is a kind of high temperature soft solder, because of its unique features and benefits as below, it is irreplaceable until now. 

     

    Adding appropriate amount of silver can make the bonds withstand higher temperature, then to match the requirements of high reliability in high power components packaging.

    Product List
    Model
    Solid Lin
    ℃
    Liquidus
    ℃
    Eutectic Alloy
    ℃
    Density
    g/cm3
    Resistivity
    µΩ.m
    Thermal Conductivity
    W/m.K
    Thermal Expansion Coefficient
    10-6/℃
    Tensile Strength
    Mpa
    Sn62Pb36Ag2 / 179 / 8.42 0.145 / 27 44
    Sn63Pb37 / 183 / 8.4 0.146 / 25 52
    Pb75Sn25 183 268 / 9.96 0.194 183 / 23.62
    Pb90Sn10 275 302 / 10.74 / 275 / /
    Pb92.5Sn5Ag2.5 287 296 / 11.02 0.2 287 24 29.03
    Pb92.5In5Ag2.5 300 310 / 11.02 0.313 300 25 31.44
    Pb75In25 240 260 / 9.97 0.375 240 26 37.58