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Bourns Releases High Inductance Common Mode Choke as Effective Power Line Noise Attenuation Solution

New common mode choke is constructed with a ferrite core for low radiation to deliver superior EMI suppression

RIVERSIDE, Calif., October 15, 2025 - Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, today released its Model SRF1709 Common Mode Choke. This new high inductance choke features a ferrite toroid core for low radiation making it an effective power line noise attenuation solution.

This new choke provides high inductance of 3.5 mH with a current rating of 2.5 A and an operating temperature range from –40 °C to +85 °C. Its advanced features are designed to provide effective Electromagnetic Interference (EMI) suppression from both incoming and outgoing paths within the system, making this high inductance choke ideal for consumer, industrial and other electronic application designs.

Bourns® Model SRF1709 Common Mode Choke is available now through Bourns’ authorized distribution partners, and is RoHS* compliant and halogen free**. For more detailed product information, please see: bourns.com/products/magnetic-products/common-mode-chokes.

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

**Bourns considers a product to be "halogen free" if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.

About Bourns

Bourns is a privately held manufacturer of power electronics, resistive components, circuit protection, and sensing solutions. Founded in 1947 and headquartered in Riverside, California, Bourns serves the automotive, industrial, consumer, communications, healthcare†, and audio markets through a global network of design, manufacturing, and sales operations. For more information, visit bourns.com.

Bourns® and the Bourns logo are registered trademarks of Bourns, Inc. and may be used only with the permission of Bourns and proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Bourns® products have not been designed for and are not intended for use in "lifesaving," "life-critical" or "life-sustaining" applications nor any other applications where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice www.bourns.com/docs/legal/disclaimer.pdf

Agency Contact:
Annette Keller
Keller Communication
annettekeller1984@gmail.com
Company Contact:
David Scofield
Bourns, Inc.
(951) 781-5054
david.scofield@bourns.com