Taiyo Yuden Tamura TDK Corporation TDK-Lambda Americas, Inc. Teccor请参阅 Littelfuse/Teccor 部分
TechTools Telecom Semiconductor, Inc.请参阅 Microchip Technology 部分
Texas Instruments Texas Instruments/Plug-In Power Solutions TI-RFid Systems Toshiba America Electronic Components TPI(Test Products International) Triad Magnetics TriQuint Semiconductor, Inc. TT Electronics/Optek Technology Tyco Electronics Tyco Electronics AMP Tyco Electronics Corcom Tyco Electronics ELCON Tyco Electronics P&B Tyco Electronics Raychem Tyco Electronics Power Systems请参阅 Lineage Power 部分
Unigen Corporation United Chemi-Con US-Lasers, Inc. US Relays & Technology, Inc. U.S. Sensor Varitronix V-Infinity(CUI, Inc. 之分部) Vishay VTI Technologies Wakefield Engineering Weidmuller Wickmann请参阅 Littelfuse/Wickmann 部分
Wintec Industries World Magnetics Wurth Electronics, Inc. Xeltek Xicor请参阅 Intersil 部分
Yageo Zetex Semiconductors Zilog