Littelfuse has aggressively expanded its technological capabilities and market reach through strategic corporate acquisitions over the years. Notable transactions include the acquisition of C&K Switches (a global leader in high-end electromechanical switches), IXYS Corporation (specializing in power semiconductors), and specialized entities like Basler Electric's DGC business and Dortmund semiconductor fabrication assets. These targeted buyouts integrate seamlessly into its core segments, enhancing its product depth in power control and electronics.