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EN
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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.
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.
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 |
