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Pb92.5Sn5Ag2.5

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
g/cm^3

Resistivity
 uΩ·m

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

1.00mm

±0.05mm

thickness(t)

Typical thickness tolerance


Conventional solder alloy

Indium alloy

t<0.05mm

±0.005mm

±0.01mm

0.05mm≤ <0.10mm

±0.008mm

±0.01mm

0.10mm≤ <0.20mm

±0.01mm

0.20mm≤ <0.40mm

±0.02mm

0.40mm≤ <1.00mm

±0.03mm

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.




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