Bourns Announces New Semi-Shielded Power Inductor Series For DC/DC Converter Power Management Applications

New Power Inductor Family Offers Enhanced Magnetic Shielding in a Miniature-sized, Cost-effective Solution

Bourns, Inc., a leading manufacturer and supplier of electronic components, recently announced a new series of semi-shielded power inductors. The semi-shielded SRN model series combines the features of non-shielded and shielded inductors, making them ideal for use in DC/DC converters, which provide power management to mobile electronic devices, computers, data storage devices and consumer electronics. Bourns’ SRN series is also well-suited for industrial applications such as LED lighting, control circuits and GPS equipment.

Bourns’ new semi-shielded power inductor series includes models SRN2010, SRN2012, SRN2510, SRN2512, SRN4012, SRN4026, SRN5040 and SRN6028. The power inductor family delivers high inductance with an inductance range of 0.24 to 220 μH. The series also features high-rated current with Irms up to 4.7 A and Isat up to 8 A. All the models are RoHS compliant^* and halogen free^**.

“Bourns designed its new power inductor family using semi-magnetic shielding technology instead of the conventional ferrite shield. Preventing uncontrolled magnetic coupling of the windings, the shielding compound is applied to the perimeter of the inductor, which envelops the winding, resulting in enhanced magnetic shielding and lower radiation emissions compared to non-shielded inductors,” said Guido Zehnder, product manager at Bourns, Inc. “In addition, our new power inductors have a greatly reduced footprint and are more cost-effective compared to competitively-sized conventional ferrite shield inductors.”

Pricing and Availability
As a pricing reference, the Bourns model series is priced at $0.12 in 25k piece quantities, depending on model size. All models in the Bourns SRN series are available now. For additional product specifications, please go to: http://www.bourns.com/ProductLine.aspx?name=power_ind_smd_semi_shielded

About Bourns
Bourns, Inc. is a leading manufacturer and supplier of automotive sensors, circuit protection solutions, magnetic products, microelectronic modules, trimming and precision potentiometers, panel controls and encoders and resistive products. Headquartered in Riverside, CA, Bourns serves a broad range of markets, including telecommunications, computer, industrial, instrumentation, automotive, consumer, non-critical life support medical, audio and various other market segments. Bourns products are manufactured according to ISO 9001 and ISO 14001 standards under Six Sigma quality programs. Bourns automotive products are manufactured in accordance with the ISO/TS 16949 standard. For more information, visit www.bourns.com.

^*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
^**Bourns follows the prevailing definition of “halogen free” in the industry. 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.