Felder Solder Solder, lead-free 627229 - Felder 5551940720, The Felder 5551940720 soldering wire is a lead-free option with a composition of Sn99.25Cu0.7Ni0.05. It is well-suited for use in electronics and electrical applications requiring RoHS compliance. This ISO-Core "Ultra-Clear" Sn100Ni+ solder ensures reliable and clean connections with its ultra-clear flux core. Felder 5551940720 ISO-Core Ultra-Clear Lead-Free Solder 0.75mm 0.25kg
