Heinrich Industrie AG is the holding company of a group of medium sized industrial companies. The companies comprise the activities in the field of fuses and fuse engineering. As a manufacturer of miniature and sub-miniature fuses for electronic devices, Wickmann is one of the leading suppliers of (best-known article: TR5/TE5) fuse components in the electronic business worldwide. Wickmann can demonstrate many years of technical competence in the development and manufacture of these products. In the meanwhile the whole production is transferred to Littelfuse Phils Inc. in Lipa City, Philippines. The Sales for Europe is handled exclusive by the Heinrich Industrie Organization. In the automotive business Heinrich Industrie offers all types of vehicles fuses, automotive power distribution boxes and circuit breakers as well as various accessories. The main customer groups are German and European car builders and their suppliers. The Sales is handled by the Little fuse Organization, too. Littelfuse originally operated as a coal mining company, whose history can be traced back to 1809. In 1968, the company did an entrepreneurial new start under at that time named as Heinrich Industrie und Handels AG.