Guangzhou Xianyi Electronic Technology Co., Ltd.
Manufacturer of Advanced Semiconductor Connecting Materials,Providing technical consulting service and solutions
Xianyi Products
Pb92.5Sn5Ag2.5 Solder Preforms
Features:
- High lead, high melting point (287/296℃)
- Good mechanical properties
- Good thermal fatigue performance
- Excellent wettability
- High reliability, supported by long-term reliability data
- High content of Pb
Description:
Pb92.5Sn5Ag2.5 is a high-lead solder with high melting point (287/296℃) and high lead content [w(Pb)>85%]. It is a high-temperature soldering material with good flow and corrosion resistance, good mechanical properties and process performance, and low cost. It is still irreplaceable in the current brazing field; adding an appropriate amount of Ag to high-lead solder can improve the heat-resistant temperature of the brazed joint, so that it can be adapted to high-power devices. The package has high reliability requirements for solder.
Solder composition and properties:
Solder Composition:
Element | Wt% |
Lead (Pb) | margin |
| Tin (Sn) | 5.0±0.5 |
Silver (Ag) | 2.5±0.2 |
Physical Properties:
Product name | Melting point/℃ Solid phase/liquid phase | Density | Resistivity | Thermal conductivity W/m·K | Thermal expansion coefficient 10-6/℃ | Tensile strength Mpa |
Pb92.5Sn5Ag2.5 | 287 / 296 | 11.02 | 0.2 | 26 | 24 | 29.03 |
Operation details:
- Solder taking：
Use an anti-static jig to pick up the solder to prevent solder contamination and deformation.
- Flux Compatibility:
Pb92.5Sn5Ag2.5 solder is compatible with the major no-clean and water-soluble electronic grade fluxes currently on the market.
Processing size:
thickness(t) | Typical tolerance of length, width or diameter (L/W/D) | |
t<0.40mm | ±0.02mm | |
0.40mm≤ t<1.00mm | ±0.03mm | |
t ≥1.00mm | ±0.05mm | |
thickness(t) | Typical thickness tolerance | |
Conventional solder alloy | Indium alloy | |
t<0.05mm | ±0.005mm | ±0.01mm |
0.05mm≤ t <0.10mm | ±0.008mm | ±0.01mm |
0.10mm≤ t <0.20mm | ±0.01mm | |
0.20mm≤ t <0.40mm | ±0.02mm | |
0.40mm≤ t <1.00mm | ±0.03mm | |
t ≥1.00mm | ±5% | |
Storage and Product Management:
-Storage
The best storage temperature of this product is 25±5℃, and the relative humidity is less than or equal to 55%RH.
-Product management
Keep container tightly closed when product is not in use.
Safety:
-Please use this product with adequate ventilation and certain personal protection conditions.
-Please do not mix with other toxic chemicals.
