TCM Series of High-Reliability Common-Mode Inductors

Exxelia is pleased to present the new TCM series of common-mode inductors. Designed and qualified to be compatible with aerospace and other high-reliability applications, the TCM series is a cost-effective solution for harsh environments.


Exxelia designed this extensive and cost-effective range to be an easy commercial (COTS) solution for aerospace, defense, and other high-reliability applications.

The TCM series is available in a through-hole package for horizontal or vertical mounting. TCM chokes are offered with inductances from 0.7 mH to 47 mH under rated currents from 0.3 to 4.0 A.  Each unit is thoroughly tested with a dielectric withstanding strength of 1,500 VAC.

Excellent thermal properties allow the series to operate from -55° C to +125° C. The high mechanical performance of the component materials (all meeting to UL94 V0 rating) makes TCM a perfect fit for aviation, defense and transportation industries.

The TCM series of common-mode chokes is designed into circuit boards of a large number of power electronic devices used for a wide range of applications, including switch-mode power supplies and converters, inverters, battery management systems, and chargers. Exxelia’s TCM series fully complies with the requirements of RoHS and REACH.

Published on 12 May 2017 by Marion Van de Graaf

Innovative RF/Microwave components at IMS - Booth# 635 -

Ultra low ESR, high RF power and high self-resonant frequency The 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. Typical circuit applications: impedance matching, bypass, feedback, tuning, coupling and DC blocking. 100% invar tuning screws with self-locking system 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. High Q Factor Dielectric Resonators Dielectric resonators are designed to replace resonant cavities in microwave functions such as filters and oscillators. Exxelia has developed with support of ESA and CNES, a new high-end dielectric material, E7000 series, designed for high-end filters where high Q factor is requested. E7000 is Ba-Mg-Ta materials based that combines an ultra-high Q factor and the possibility to get all the temperature coefficients upon request. E7000 provides high-performance requested for space use in the frequency range 5 to 32 GHz, and guarantees up to Qxf > 250 000 at 10GHZ. Typical applications: Satellite multiplexing filter devices, radio links for communication systems (LMDS), military radars.

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.