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Des résistances haute performance pour vos missions les plus critiques

Le talent dont fait preuve Exxelia Ohmcraft pour concevoir et livrer des résistances sur mesure est indispensable aux fournisseurs de matériel militaire.

Resistances Haute Performance pour vos missions les plus critiques 

Exxelia Ohmcraft satisfait les exigences de la guerre électronique moderne, des plateformes d’armes et des militaires de profession. Nous avons compris que l’innovation est un élément essentiel du succès en tant que fournisseurs s’adressant aux armées actuelles. Exxelia Ohmcraft approvisionne le marché militaire depuis plus de vingt ans et apporte un soutien sans faille à une large gamme de produits, programmes et applications. Dans ce domaine où la technologie prime, nos produits, standard comme sur mesure, sont bien placés pour répondre aux spécifications rigoureuses attendues de la part des fournisseurs de matériel militaire.

Une conception sur mesure pour les applications militaires

Le talent dont fait preuve Exxelia Ohmcraft pour concevoir et livrer des résistances sur mesure est indispensable aux fournisseurs de matériel militaire. Nos ingénieurs collaborent étroitement avec vous afi n de fabriquer des produits qui correspondent parfaitement à vos att entes.

  • Résistances de surface, diviseurs de tension et réseaux
  • Grande expérience dans la concepti on de résistances sur mesure et la prise en charge des SCD (Source Control Drawings, dessins de contrôle à la source) pour les plans déjà existants comme pour les nouveaux
  • Petits lots à destination de prototypes ou fabrication à grande échelle

Exxelia Ohmcraft est capable de tester des pièces selon plusieurs spécifications militaires, dont :

  • MIL-PRF-55342, 83401, 55182H, 914B et 49462B
  • MIL-STD-129, 1276F et 1285F
  • MIL-STD-202 • Résistances pour environnement spatial
  • Vaste plage de température
  • Mise au point rapide de prototypes

Nos suggestions de resistances : 

Chez Exxelia Ohmcraft, nous disposons d'une large gamme de résistances robustes et de haute performance. Voici quelques suggestions : 

- HIGH VOLTAGE LEADED DIVIDERS RESISTORS  (HVD SERIES)

- HIGH VOLTAGE AXIAL RESISTORS (HVA SERIES)

- MILITARY GRADE HIGH VOLTAGE CHIP RESISTORS (MCH SERIES)

Vous voulez en savoir plus sur nos produits militaires ?

TÉLÉCHARGEZ NOTRE FLYER ICI

Published on 03 May 2021 by Valentine Taffineau

Innovative new products at Electronica - Booth# B5 312 -

Felsic HV, long lifetime and high voltage screw terminal The Felsic HV family of aluminum electrolytic screw terminal capacitors provides great performances in energy density and ultra-long lifetime. For example products can withstand 8 000 hours at 105°C under high values of current which makes them the perfect choice to overcome railway constraints. The family also has one of the lowest ESR for aluminum capacitors, 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. Thus the family is a good compromise between reliability and compacity, with for example 47 000μF @ 160V in a 90x200mm volume. Cost-effective common-mode chokes qualified for aerospace Designed and qualified for aerospace, the TCM series is available in a through-hole package for horizontal and vertical mounting. TCM common-mode chokes are offered with inductances from 0.7 to 47mH under rated currents from 0.3A to 4A, and thoroughly tested by a dielectric withstanding strength at 1500VAC. Their excellent thermal properties allow the TCMs to operate without a hitch from -55°C up to +125°C, which, combined to the high mechanical resistance of the chosen materials (all meeting to UL94 V0 rating) make those products the perfect fit for aviation, defense and transportation industries. Ceramic capacitors based on the new C48X dielectric New range of high voltage ceramic capacitors based on brand new dielectric material C48X, combining most advantages of NPO and X7R dielectrics. Compared to X7R material, C48X dielectric allows to get the same capacitance values under working voltage with the unrivaled advantage of a very low dissipation factor (less than 5.10-4). Besides, it can also withstand very high dV/dt, up to 10kV/μs, which makes it the solution of choice for pulse and fast charge/discharge applications or firing units. Thus capacitors with C48X dielectric appear to be ideally suited for power applications where heat dissipation may be detrimental to performances and reliability. Ultra low ESR, high RF power and high self-resonant frequency The new NHB 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. The series is available in 1111 size 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 is obtained by combining highly conductive metal electrodes and proprietary of new NPO low loss rugged dielectrics. NHB series particularly fits for high power and high frequency applications such as: cellular base station equipment, broadband wireless service, point to point / multipoint radios and broadcasting equipment.

Magnetic Components based on Adaptive CCM Technology at APEC – Booth# 653 –

Exxelia will exhibit the CCM series during the Applied Power Electronics Conference at Exxelia’s booth #623 from March 27-30, 2017 in Tampa, FL. Exxelia designed CCM technology to respond to the growing interest of electronic engineers for inductors and transformers with multiple outputs, high power density and reduced footprint. Qualified for aeronautic and space applications, the CCM product line features terrific robustness. The monolithic design provides high mechanical performance, proven by the successfully testing in accordance with MIL-STD-202 (methods 213 and 204). The series offers five different sizes, allowing optimized component design in a pick-and-place surface mount (SMD) package. Through-hole (TH) packages are also available upon request. The CCM series is particularly flexible with a number of pins options available, from 2×6 pins for the smallest package, up to 2×10. CCM transformers and inductors can operate over a wide temperature range with a minimal temperature of -55° C. The standard thermal grade of the technology is 140° C. Thanks to the technology design, the thermal resistance is 30% lower than standard industrial components. The epoxy molding protecting the winding ensures a lower temperature gradient and a better heat dissipation. Each unit is thoroughly tested with a dielectric withstanding strength of 1,500 VAC.  Component materials meet UL 94-V0 rating. Exxelia can evaluate losses and related temperature rise thanks to an in-depth knowledge of CCM technology. Thermal resistance data is available for each package size. Exxelia can also manufacture products in CCM technology according to MIL-STD-981.
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