A new inductor that provides high impedance over high frequencies with a thin and compact design

Riverside, California—June 4, 2025—Bourns, a leading manufacturer of electronic components for power, protection, and sensing solutions, announces a new common-mode inductor series designed for noise suppression in signal transmission line applications. The Bourns® SRF1209U4 series common-mode chip inductor features a low-profile, compact design that meets space-constrained design specifications. The product also offers high impedance over high frequencies, improving the signal-to-noise ratio (S/N), making it ideal for signal transmission line applications.

The Bourns® SRF1209U4 series supports USB 3.1 Gen 1/2, HDMI 2.0/2.1, USB 4.0, and Thunderbolt interfaces. This chip inductor series has an operating temperature range of -40°C to +125°C, and offers a maximum impedance of 90 Ω, a maximum rated current of 400 mA, and a DC resistance (DCR) of 0.3 Ω.

The Bourns® SRF1209U4 series common mode chip inductors are currently available and are RoHS compliant(※1) and halogen-free(※2).

For more information, please visit the Bourns website.

　※1：RoHS Directive 2015/863, Mar 31, 2015 and Annex.
※2：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.

product page

For more information on our general range of common mode chip inductors and the SRF1209U4 series, please visit the Bourns page.

• Common mode chip inductor products
• SRF1209U4 Series

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