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Solder Preforms
SOLDER PREFORMS
Tin-lead Solder Preforms

With the increasing awareness of environmental protection, lead-free solders are replacing tin-lead solders gradually. However, due to their good performance on wettability, reliability etc., tin-lead solders are still in wide use.

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
Solid Line
°C
Liquidus
Eutectic Alloy
Density
g/cm3
Resistivity
μΩ.m
Thermal Conductivity
W/m.K
Thermal Expansion Coefficient
10-6/℃
Tensile Strength
Mpa
/ 179 / 8.42 0.145 42 27 44
/ 183 / 8.4 0.146 51 25 52
183 268 / 9.96 0.194 / / 23.62
275 302 / 10.74 / / / /
287 296 / 11.02 0.2 26 24 29.03
300 310 / 11.02 0.313 25 25 31.44
240 260 / 9.97 0.375 18 26 37.58
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