Bourns Released ACXX57SQ Air Coil Inductors
The new surface-mount components enable higher efficiency in high-frequency radio and television hardware.
Updated on Sept. 30, 2026 in Semiconductors
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Bourns has released the ACXX57SQ Series, a line of surface-mount air coil inductors designed for automated assembly. These components are now available for global use in high-frequency radio and television electronics.
Why it matters
This series targets the growing demand for precision in radio transmitters and RF amplifiers, providing standardized components for automated high-frequency circuit manufacturing. By offering tighter tolerances and mechanical stability, these inductors address the need for consistent signal processing in compact receiver designs.
The ACXX57SQ inductors offer inductance values from 90 nH to 300 nH and rated currents reaching 5.7 A. They maintain maximum DCR (direct current resistance — the electrical resistance of the component in a non-alternating circuit) between 5.5 mΩ and 13.8 mΩ.
The players
Bourns
An electronics component manufacturer that specializes in passive components, sensors, and circuit protection devices for the automotive, industrial, and telecommunications sectors.
The details
The components feature a flat geometry on both top and bottom surfaces, facilitating mechanical stability for standard pick-and-place manufacturing machines. By minimizing physical movement during automated assembly, these inductors maintain high signal integrity in RF (radio frequency) applications. The series operates across a temperature range of -25 °C to +125 °C and complies with RoHS (Restriction of Hazardous Substances) standards for environmental safety.
Timeline
September 30, 2026: Bourns announced the commercial availability of the ACXX57SQ Series.
The Tech Race
This release follows the industry-wide trend of optimizing passives for higher frequencies and automated board-level assembly. It positions Bourns alongside other component providers competing to reduce parasitic effects in RF amplifier designs.
Engineers and designers can now integrate these inductors into automated production workflows for radio and television hardware. The components are available immediately for global surface-mount design applications.
The takeaway
These inductors provide a new option for maintaining signal clarity in radio transmitters. Designers should monitor the implementation of these components in upcoming RF amplifier prototypes to confirm if they achieve the expected performance benchmarks.
Further reading
For more on evolving component standards, browse our Semiconductors section.
Source note: This article includes information reported by Everythingrf.
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Should manufacturers prioritize ease of automated assembly when designing new electronic components?
