Diotec Semiconductor AG, founded in 1973 by Dr. Claus H. K. Müller, is headquartered in Heitersheim, Germany. The company specializes in the development, manufacturing, and sales of discrete semiconductor components. Core products include standard rectifiers, fast and ultrafast rectifiers, Schottky diodes, Zener diodes, TVS protection diodes, high-voltage diodes, and bridge rectifiers. Diotec offers both through-hole axial packages and surface-mount SMD devices, along with custom power modules and tailored solutions. The company serves a wide range of industries, such as automotive, industrial, consumer electronics, and lighting. Well-known product series include UF/SF ultrafast rectifiers, SB/SK Schottky diodes, BZX and ZPD Zener diodes, and 1.5KE/SMBJ TVS protection diodes. Diotec is a prominent European discrete semiconductor manufacturer, recognized for high reliability, competitive pricing, and expertise in small to medium production volumes. It maintains stringent quality certifications like ISO/TS 16949 for automotive applications. With a global distribution network and subsidiaries in the USA and Asia, Diotec offers over 10,000 standard discrete devices. While not among the very largest semiconductor corporations, it holds a strong niche position in the discrete and power device market, frequently chosen as a cost-effective, high-quality alternative to larger brands.