SN100C-SEL

Special alloy for selective soldering

The BALVER ZINN alloy SN100C-SEL (SnCu0,7Ni) has been specially developed for the selective soldering process to control the continuously increasing nickel and simultaneously decreasing copper values.

The SN100C-SEL is a nickel-stabilized tin-copper eutectic with additional doping of germanium to permanently reduce the oxidation of the alloy. The SN100C-SEL produces shiny solder joints. The adapted composition allows constant solder bath management and helps to save material. The SN100C-SEL is the preferred solution for the higher process temperatures of selective soldering. By adjusting the nickel content, SN100C-SEL and the copper-reduced SN100Ce-SEL counteract an increase in nickel content caused by a high proportion of ENIG circuit board surfaces.

Alloy composition

Element

SN100C-SEL

SN100Ce-SEL

SN100C®

Sn

Remainder

Remainder

Remainder

Cu

0.6 - 0.7

0.3 - 0.4

0.6 - 0.7

Ni

0.01 - 0.03

0.01 - 0.03

0.04 - 0.06

Ge

0.005 - 0.007

0.005 - 0.007

0.005 - 0.007

Alloy Product data sheet Safety data sheet Application note
SN100C-SEL
SN100Ce-SEL
SN100C