AGL Technology 
www.sample-kits.de
Analog Devices 
www.analog.com 
Atmel Corporation
www.atmel.com
Catalyst 
www.catsemi.com
ChipCenter (Questlink)
www.questlink.com 
Cypress 
www.cypress.com 
Digi-Key 
www.digi-key.com 
Elna 
www.elna-america.com
EPCOS
www.epcos.com
Fairchild Semiconductor 
http://www.fairchildsemi.com/
Freescale 
www.freescale.com 
FTDI
www.ftdichip.com
Geyer Elektronik
www.geyer-electronic.de
Greatecs
www.greatecs.com
Hirschmann
http://www.sks-kontakt.de
IDT
www.idt.com
Infineon
www.infineon.com
International Rectifier
http://www.irf.com
Linear
www.linear.com
Maxim
www.maxim-ic.com
Melexis

www.melexis.com
Microchip
www.microchip.com
Murata Manufacturing
http://www.murata.com/
National Semiconductors
www.national.com
NEC

www.ee.nec.de
NXP
www.nxp.com
Onsemi

www.onsemi.com
Opencores
www.opencores.org
Osram

www.osram-os.com
Panasonic

www.panasonic-electric-works.de
Panasonic Industrial Solution
www.industrial.panasonic.com
Philips
www.nxp.com
STMicroelectronics
www.st.com
TGS
www.tgs-tools.com
Tyco Electronics
www.tycoelectronics.com
Vishay

www.vishay.com