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 21 May 2017 by Marion Van de Graaf

Exxelia Micropen Expands Manufacturing in Honeoye Falls

To accommodate current and future demand for its technologies, Exxelia Micropen has completed construction to expand its Honeoye Falls facility by more than 20 percent. The 9,000-square-foot addition includes 5,000 square feet of new cleanroom space, enabling the company to double the capacity of its manufacturing operations.   Exxelia Micropen utilizes its proprietary technology to “print” ultra-precise lines of conductive inks on three-dimensional and flexible surfaces, including advanced medical devices. The technology is also used to make high-performance resistors for a wide range of demanding applications in aerospace, imaging, and electronics. Since 2017, the company has experienced double-digit growth every year as demand for its innovative engineering, design, and manufacturing services has escalated.   “As we continue to develop new partnerships to meet the unique needs of customers across the globe, we outgrew our space,” “The expansion allows us to boost our production volumes while we continue to provide the innovative technologies and exceptional service and delivery times that our customers have come to rely on.” said Ed Petrazzolo, CEO, Exxelia Micropen.   Exxelia Micropen partnered with Hamilton Stern Construction and Hanlon Architects for the expansion, which began in the spring. In addition to the manufacturing space, the project includes a new lobby, employee breakroom, and more office space. Parking also grew to a total of 140 spaces.   “The expansion of Exxelia Micropen’s facility is a prime example of the success of our Design-Build service, which provides clients with a cohesive, one-stop-shop experience to save time and reduce costs,” said Justin Hamilton, Principal, Hamilton Stern. “Our close partnership with Hanlon Architects, Marathon Engineering, and Exxelia Micropen enabled this project to be completed in roughly 13 months all while fully maintaining the facility’s production volumes. We are grateful for Exxelia Micropen’s trust in our firm to be part of their continued growth.”   “We are proud of what we have built in Honeoye Falls,” said Petrazzolo. “The talented employees we’re able to recruit from the Rochester area are critical to our success, and the expansion only reinforces our commitment to further develop our presence here. We look forward to a long, prosperous future as part of this community.”