
Capacités monocouches Hyperfréquences :
Fréquences jusqu’à 100 GHz
Substrats, Plots de report et Métallisation : Classe I et II
Constantes diélectriques de 3.8 à 25000-Quartz, ALN, Titane, ...
Capacitor Substrates and Metallizations
COMPEX offers an extensive variety of substrates in both Class I and Class II categories
with dielectric constants ranging from 3.8 to 25,000 and beyond. These are the same
substrates used to fabricate our components. Other dielectric materials are available;
please consult our factory.
CLASS I Dielectric Materials: This class of dielectrics consists of material exhibiting
very low losses, extremely low or closely controlled temperature coefficients,
negligible voltage and frequency coefficients, negligible aging effects,
and high insulation and dielectric breakdown.
CLASS II Dielectric Materials: This class of material is characterized by high dielectric
constants, increased losses and higher temperature coefficients. These properties
are inherent with this class of material but the high dielectric constants permit
the use of smaller size to achieve low series inductance and meet dimensional requirements.
Capacitors made with these materials are often used for coupling of microstrip line circuits
where the small chip size is necessary. Used as bypass capacitors, the small size provides
low series inductance and dielectric losses are typically of little concern.
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