Fine alloyed strip and semi-finished products

BB01: Low-alloyed copper alloys are distinguished by a high electrical conductivity. They do not reach the spring force of the bronzes, however, in comparison with pure copper, they are significantly harder. Therefore, they are predominantly used for lead frames for semiconductors, as well as for cable connectors and for the central fuse, relay and terminal box of automobiles. BB01 is a copper alloy with a low Sn content for power semiconductors, which are used in the case of high heat development (e. g. TO 220). BB01 differs from SB02 (UNS C19400) by the higher thermal conductivity and the higher electrical conductivity. In comparison with pure copper BB01 has a higher strength while the electrical conductivity is a little lower. BB01 has excellent soldering and welding properties. The alloy is registered with the U.S. EPA as Antimicrobial and with respect to Pb and Cd meets the OEKO-TEX Standard 100.

SB01: Low-alloyed copper alloys are distinguished by a high electrical conductivity. They do not reach the spring force of the bronzes, however, in comparison with pure copper, they are significantly harder. Therefore, they are predominantly used for lead frames for semiconductors. SB01 is a copper alloy with a very low iron content. SB01 differs from SB02 (UNS C19400) by the higher thermal conductivity and the higher electrical conductivity. In comparison with pure copper SB01 has a higher strength while the electrical conductivity is a li5le lower. SB01 has excellent soldering and welding properties. The alloy is registered with the U.S. EPA as Antimicrobial and with respect to Pb and Cd meets the OEKO-TEX Standard 100.

SB02: Low-alloyed copper alloys are distinguished by a high electrical conductivity. They do not reach the spring force of the bronzes, however, in comparison with pure copper, they are significantly harder. During the last decade SB02 (UNS C19400) has gained importance for lead frames because of the high electrical conductivity and the favourable price and in the mean- .me it has become the copper alloy with the world-wide most frequent use for this application. Due to the necessary miniaturisation of components and the increased packing density involved, materials with high conductivity gain importance. Therefore, for some .me SB02 is also used in electric and electronic automotive applications for special connectors and for the central fuse, relay and terminal box. The alloy is registered with the U.S. EPA as Antimicrobial and with respect to Pb and Cd meets the OEKO-TEX Standard 100.