The complex electronics of nitrogen oxide sensors require a robust housing. Mounted near the exhaust system, the thermal and mechanical load exercised by temperature differences and vibrations strains the plastic housing. Glass-fibre-reinforced PBT withstands these stresses over very long periods and can also be processed dimensionally accurately. In addition to dimensional accuracy, cleanliness plays a major role in housings for miniaturised electronics, especially in bonding applications. Besides avoiding metallic particles in the process, the bonding surfaces must also be protected against any greasy contamination. This must be taken into account when designing the equipment, gripper systems and tools. In addition, the inserts and finished parts have to be handled in a specially coordinated procedure. Production on fully automated lines allows large quantities to be manufactured while achieving excellent quality. This also secures a competitive advantage in globalized markets. Regular reviews in line with our IATF 16949 certification guarantee that the quality of our products reliably meets the highest standards.