HGR Henri Grandjean AG
ceramic components
chip inductance - chip spools SMD - feed-through capacitor - high frequency components - inductive components - capacitance trimmer - ceramic high frequency components - condenser - membranes - piezoceramics - piezoceramics membranes - piezoceramics signal generators - SMD-spools - SMD-transformers

 KVG Quartz Crystal Technology GmbH
quartz components
OCXO - oscillator - quartz+A261 - quartz filter - oscillating crystal - TCXO - VCO - VCXO - XO

 HTS
sensor-technics
piezo sensors

 HGR Henri Grandjean AG
inductive components
ferrite cores - - high frequency components - inductive components - signal transducer - SMD-transformers - storage throttles - spools - transducers