In the second quarter 2006, Littelfuse, a manufacturer of circuit protection components and systems, had a turnover of 137.9 M US$ and increased its results by 19% over the previous year. The bottom line showed a net profit of 449 000 US$ in comparison to 4.3 m US$ of Q2/2005. In the past months Littelfuse has taken over various companies including Concord, SRC Devices, Catalina and Song Long.