Gammes de condensateurs HiQ à l'EuMW

Exxelia exposera au salon European Microwave Week, du 4 au 6 octobre à l’Excel London, stand n°237. L’occasion de présenter les principales gammes de condensateurs RF/Microwave : Classic HiQ, Super HiQ ainsi que la nouvelle gamme NHB.


 

Exxelia Temex will be exhibiting at European Microwave Week 2016 through its mother group Exxelia. Showcased on the booth #237 will be all the company’s solutions intended for applications requiring low loss in equivalent series resistance (ESR) and high Q factor for specified DC or RF voltage, including Classic HiQSuper HiQ and NHB series.

Classic HiQ series is a range of RF ceramic capacitors providing low ESR and Ultra High-Q. The high-density ceramic construction provides a hermetic package and the highest working voltage on the market; up to 1500V and RF currents. Available in 0505 and 1111 sizes with capacitance values from 0.1pF up to 1000pF, the Classic HiQ series is perfectly adapted for applications such as: linear RF power amplifiers (LPA), mixers, filter networks, timing circuits, delay lines, oscillators, etc.

Super HiQ series offers excellent performance in critical high RF power applications requiring consistent and reliable operation. The range has been engineered in all standard EIA sizes to provide constant capacitance over voltage, temperature and aging. It is also available in RF specific sizes (0402, 0603, 0805, 1206, 1210). The ultra-stable Super HiQ series offers Ultra-low ESR and Ultra HiQ with capacitance values from 0.2pF up to 1000pF. In addition, it enables superior high-voltage handling with working voltage up to 1500V. This series is particularly fit for cellular base station equipment, broadband wireless service, RF generators applications.
Typical circuit applications: filters networks, matching networks, tuning, coupling and DC blocking.

NewNHB series is a complete range of MLCC based on NPO dielectric material providing a very high Self Resonant Frequency and limiting the parasite Parallel Resonant Frequencies, available in 1111size with capacitance ranging from 0.3pF to 100pF. NHB series offers excellent performance for RF power applications at high temperature up to 175°C and at 500 VDC. The lowest ESR (Equivalent Series Resistance) is obtained by combining highly conductive metal electrodes and proprietary new NPO low loss rugged dielectrics.
NHB series is particularly fit for high power and high frequency applications such as: cellular base station equipment, broadband wireless service, point to point / multipoint radios and broadcasting equipment.
Typical circuit applications: impedance matching, bypass, feedback, tuning, coupling and DC blocking.

All capacitors are packaged either as bulk chips or with tape or reel. All components are RoHS compliant and available with magnetic and non-magnetic terminations. They also provide as a good alternative for MIL-PRF-55681 / CDR capacitors. European Military, space grades and custom made capacitors are also available on request.

Publié le 12 Sep 2016 par Marion Van de Graaf

Nouveau diélectrique céramique haute tension, haute stabilité

La miniaturisation des systèmes électroniques est devenue un enjeu majeur et touche tous les domaines d’application. Afin de répondre à cette tendance, Exxelia Technologies (ex-Eurofarad) a développé une gamme de condensateurs céramique haute tension basée sur un tout nouveau matériau diélectrique (C48X) combinant tous les avantages des produits X7R et NPO/C0G. En effet, le C48X permet d’obtenir les mêmes valeurs de capacité sous tension que le X7R, avec l’avantage indéniable d’avoir un facteur de dissipation extrêmement faible (moins de 5.10-4). De plus, le C48X supporte un dV/dT très élevé jusqu’à 10kV/μs, faisant de ce matériau une solution de choix pour les applications nécessitant une charge/décharge ultra rapide ou pour des systèmes d’allumage. Les condensateurs C48X sont également parfaitement adaptés aux applications de puissance où la dissipation de chaleur peut être préjudiciable aux performances et à la fiabilité. Les condensateurs C48X du groupe Exxelia ont été développés des tailles 1812 à 16080 pour des tensions allant de 200 à 5000V, avec une capacité maximale de 10μF à 200V (10 fois supérieure par rapport à la capacité obtenue avec une céramique NPO). Les produits stackés sont proposés avec une capacité maximale de 47μF à 200V. Plusieurs solutions de report existent sur cette nouvelle gamme, compatible aussi bien avec un montage en surface qu’avec un report sur circuit à trous traversants. Toutes ces versions sont adaptées aux usages spatiaux et peuvent être conçues pour éviter le risque de whiskers (alliage étain-plomb à 10% de plomb mini). La gamme C48X est en cours d’introduction en EPPL ESA pour les tailles 0603 à 6560 de 100V à 1kV jusqu’à la taille 1210 et jusqu’à 5kV pour les tailles supérieures. Quelques applications usuelles : • Alimentations à 400Hz, • Defense • Spatial • Filtrage AC ou DC en environnement thermique

Exxelia à Railtex 2017

Felsic HV, long lifetime and high voltage screw terminal aluminum electrolytic capacitor The Felsic HV family of aluminum electrolytic screw terminal capacitors provides great performances in energy density and ultra-long lifetime. For instance, 6 800µF @450V fit into a  volume of Ø77 x 220mm  and can withstand 200,000h between 0 to 70° under 37Amps, which makes them the perfect choice for use in rolling stock traction systems or the CVS. The family also has one of the lowest ESR for aluminum capacitors with less than 10m0hms in most cases. Products are available for voltages from 160 to 450 Vdc, and offer capacitance values from 1500μF up to 47 000μF offering the best compromise between reliability and compacity.     Snapsic HV, high voltage snap aluminum electrolytic capacitor Because it covers voltages from 16 to 500Vdc and temperatures up to +105°C, and because it is customizable, the Snapsic HV series is very versatile and can cover all needs of energy storage in medium voltage both in rolling stock equipment or signaling systems. Thanks to its high ripple current, it is often used in SMPS and HVAC rolling stocks units with a typical variation of 470µF @450V in Ø35 x 50mm, as well as in various signaling control units, where a smaller package can be used with for example 1 000µF @250V in Ø35 x 40mm.   Prorelsic, the long lifetime axial aluminum electrolytic capacitors for signaling equipment Exxelia’s range of aluminum electrolytic solutions would not be complete without the axial leaded Prorelsic series. These capacitors show high ripple current and extra-long life-time with 20 000h @105°C. The most common sizes are Ø8.5 x 19mm, Ø10 x 19mm and Ø12 x 30mm, with typical values of 47µF @40V, 100µF @25V and 47µF @100V respectively. Prorelsic capacitors are perfectly suited for smoothing, coupling/decoupling and energy storage functions in railway signaling equipment.

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