Caddock Electronics, Inc. Cantherm Cardinal Components Carling Technologies Catalyst Semiconductor, Inc. CDE（请参阅 Cornell Dubilier Electronics 部分）
CEL California Eastern Laboratories Cherry Switch Chipcon Products（请参阅 Texas Instruments 部分）
CII Technologies（请参阅 Tyco Electronics Corcom 部分）
Cinch Connectors Cirrus Logic, Inc. Citizen C&K Components Clare Clarostat（请参阅 Honeywell Sensing and Control 部分）
C-MAX CML Innovative Technologies Coiltronics（Cooper/Bussmann 之分部） Comair Rotron Comchip Technology Conec Conner-Winfield Conxall/Switchcraft, Inc. Cooper/Bussmann Copal Electronics Cornell Dubilier Electronics（CDE） Coto Technology Cramer Company Cree CR Magnetics, Inc. Crouzet Crydom Crystek Corporation C-Ton Industries CTS CTS Electronic Components（California）, Inc. CUI, Inc. CUI, Inc./V-Infinity（请参阅 V-Infinity 部分）
Curtis Industries（原称 Eastek International/PREO） Curtis Instruments Custom Computer Services（CCS） CW Industries Cynergy3 Cypress Semiconductor Daburn Electronics & Cable Corp. Dale（请参阅 Vishay/Dale 部分）
Dallas Semiconductor Delta Product Groups Dialight Digi-Key Digital View, Inc. Diodes, Inc. DLP Design, Inc.