- Agilent Technologies / HP
- Airpaxs
- Allegro Microsystems
- AMP
- Amphenol
- Amprobe Instruments
- AMS American Micro Semiconductors
- Analog Devices
- B&K precision
- Bussmann
- Clarostat
- Cornell Dubilier
- Crydom
- Dale
- Eaton
- Epcos
- Fairchild
- Fluke

EE

- General Electric
- Hitachi
- Inductotherm
- Infineon Techologies / Siemens
- International Rectifier
- Intesil
- Kester
- Keystone
- Littlefuse
- Mallory
- Microchip
- Mitsubishi
- Motorola
- NEC-Nipon Electric Company
- NTE / ECG
- Ohmite
- Omron Electronic
- ON Semiconductor

EE

- Ohmite
- Omron Electronic
- ON Semiconductor
- Opto 22
- Potter & Brumfield
- Powerex
- ROM Semiconductorts
- Sanyo
- Schneider Electric
- Semikron
- Siliconix
- Solid State Inc
- Spectrol
- Sprague
- Tektronixs
- Texas Instruments
- Toshiba
- Vishay Semiconductor
- Weller
- Agilent Technologies / HP
- Airpaxs
- Allegro Microsystems
- AMP
- Amphenol
- Amprobe Instruments
- AMS American Micro Semiconductors
- Analog Devices
- B&K precision
- Bussmann
- Clarostat
- Cornell Dubilier
- Crydom
- Dale
- Eaton
- Epcos
- Fairchild
- Fluke

EE

- General Electric
- Hitachi
- Inductotherm
- Infineon Techologies / Siemens
- International Rectifier
- Intesil
- Kester
- Keystone
- Littlefuse
- Mallory
- Microchip
- Mitsubishi
- Motorola
- NEC-Nipon Electric Company
- NTE / ECG
- Ohmite
- Omron Electronic
- ON Semiconductor

EE

- Ohmite
- Omron Electronic
- ON Semiconductor
- Opto 22
- Potter & Brumfield
- Powerex
- ROM Semiconductorts
- Sanyo
- Schneider Electric
- Semikron
- Siliconix
- Solid State Inc
- Spectrol
- Sprague
- Tektronixs
- Texas Instruments
- Toshiba
- Vishay Semiconductor
- Weller

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