Back to news

ESA QPL Film capacitors

Low dielectric losses, very light masse, thermomechanical withstanding

PM907S and PM948S are full series of Polyester Film Capacitors. PM907S products are suitable for voltages from 50V up to 1250V and offer capacitance values from 82nF up to 180μF. PM948S can be used with a voltages from 50V up to 630V with capacitance values from 22nF up to 47μF. Both series can support extreme conditions with temperatures from -55°C to +125°C, and offer high energy density, low ESR & ESL and high RMS current.

Typical characteristics

  • Self-healing properties
  • Open circuit failure mode
  • High reliability & quality
  • High energy density
  • Very light masse
  • Low ESR & ESL
Published on 07 May 2018 by Marion Behier

NEW INVAR TUNING ELEMENTS WITH SELF-LOCKING SYSTEM

Working frequencies in Space applications are shifting to Ka, Ku or even Q band, while cavity filters are undergoing the general trend towards miniaturization: this context calls for a much more precise and stable tuning element now offered by Exxelia Temex, daughter company of Exxelia, through their last innovative and unrivalled solution to incorporate a self-locking system into their Invar Tuning Elements. Invar-36 is a unique Iron-Nickel alloy (64 % Fe / 36 % Ni) sought-after for its very low coefficient of thermal expansion. With 1.1 ppm. K–1 between 0°C and 100°C, Invar-36 is about 17 times more stable than Brass which is the most traditional and common alloy Tuning Elements are made of. The working temperature range in Space is so wide that this property becomes essential for a reliable and stable cavity filter tuning. Self-locking system is a technology commonly used on Tuning Element made of Brass or other soft “easy-to-machine” alloys but is innovative and pretty advanced when applied to hard and tough Invar 36. The design consists of two threaded segments separated by two parallel slots. After cutting both parallel slots, the rotor is compressed in its length in order to create a plastic deformation. Thus, an offset is induced between the two threaded segments which generates a constant tensile stress in the rotor from the moment threaded segments are screwed.

Innovative new products at Electronica 2022 - Booth# A5 - 339

Electronica will take place from November 15th to 18th in Munich, Germany. On our booth #A5 - 339, we will be displaying a bunch of innovative new ranges. EMBEDDED DIVISION - AVIATION / DEFENSE / SPACE   We are proud to show our latest capacitor technology innovation called MML® technology. Miniature Micro-LayerTM Film is a breakthrough in film capacitor technology, with an energy density up to 4 times superior to other film dielectrics. MMLTM innovative technology makes power capacitors smaller, lighter and compatible to higher temperatures. It is perfect for DC link, decoupling, charge-discharge applications. Alongside MML, we will also be exhibiting innovations in magnetics, allowing saving up to 40% weight and 20% volume while dissipating more power. You will also find our new aluminum electrolytic rectangular low profile capacitors named Cubisic SLP and HTLP, our MIL & DSCC tantalum capacitors (newly qualified to reliability level P) as well as our multi-outputs CCM transformers & Dual Active Bridge. But also our components on board the eVTOL.   RAIL & INDUSTRY DIVISION   It is with great joy that we will be exhibiting Alcon capacitors for the first time on our booth. Alcon manufactures film and aluminum electrolytic capacitors that are particularly suitable for locomotives and power electricity charging stations. We will also exhibit film and ceramic capacitors for signaling, and magnetics for rail tracking system, openable current transformer, TFPP transformer and resistors.   MEDICAL DIVISION   Our new Exxelia Micropen branch has an outstanding product offer for medical products that will be showcased at Electronica for the first time ever! Indeed, Exxelia Ohmcraft high voltage resistors are widely used into laboratory equipment such as mass spectrometers or thermocyclers. We will also be showing our Exxelia Micropen unique additive printing technology used extensively for medical disposable material such as endotracheal tubes or surgical ablation tools. You will discover our new range of film components from the Alcon family and our well-known non-magnetic High-Q capacitors for MRI imaging systems, as well as our low profile flyback transformers for implantable devices.  

Back to news