CAPACITORS

AVX
Cornell Dubilier
Elna
Kemet
Mica Capacitors
Murata
Nichicon
Sprague Goodman
TDK
United Chemi-Con
Vishay
Wet Tantalum
Wima
Xicon

FREQUENCY CONTROL

Abracon
AVX
Citizen
Crystek
Ecliptek
ECS
FOX
Murata
Seiko
Vishay/Dale

EMI FILTERS EMI/RFI SUPPRESSION

Fair-Rite
FerriShield
TDK
Murata
Spectrum Control
Vishay/Dale

INDUCTORS

API Delevan
Bourns
C&D Technologies
Fastron
J.W.Miller
Murata
Pulse
Sumida
Schurter
TDK
Triad
Vishay/Dale
Xicon
Yageo

SIGNAL TRANSFORMERS

Pulse
Xicon

Crystals & Oscillators

Abracon
ARonix
AVX
Citizen
Crystek
Ecliptek
ECS
Fox
Murata
Seiko
Vishay