Multilayer Chip Bead Inductors combat noise in smartphones.

Achieving Low DC Resistance and a High Rated Current to Combat Noise in the High Frequency Bands

Schaumburg, IL – TAIYO YUDEN CO., LTD. has announced the expansion of its component series of chip bead inductors which are designed to meet state-of-the-art low noise requirements. These products are the multilayer chip bead inductor BK series P type, BKP1005 (1.0 x 0.5 x 0.5mm) and BKP0603 (0.6 x 0.3 x 0.3mm), used in power supplies, and the multilayer chip bead inductor BK series, BK0603 (0.6 x 0.3 x 0.3mm).

The multilayer chip bead inductors are ferrite chip beads that address the high frequency noise generated in the power supply and signal circuits of small mobile devices such as smartphones.

The BKP1005EM221 product (with an impedance of 220Ω) improves on the rated current of the company’s conventional product BKP1005HM221 (with an equivalent value) by roughly 11%, from 900mA to 1000mA. The DC resistance has successfully been reduced by about 17%, from 0.180Ω to 0.150Ω, which increases functionality and efficiency of small mobile devices such as smartphones.

The BKP1005EM221 product (with an impedance of 220Ω) improves on the rated current of the company’s conventional product BKP1005HM221 (with an equivalent value) by roughly 11%, from 900mA to 1000mA. The DC resistance has successfully been reduced by about 17%, from 0.180Ω to 0.150Ω, which increases functionality and efficiency of small mobile devices such as smartphones.

TAIYO YUDEN’s lineup has expanded by 20 product numbers. They have added the 6 products to the new EM series for BKP1005, expanded BKP0603 by adding 3 HS series products and the new HM series of 3 products, and have added 8 products as the TS and TM series for BK0603.

Production has manufactured for these products at TAIYO YUDEN (PHILIPPINES), CO., LTD. (Lapulapu City, Cebu) at an output pace of 20 million units per month for BKP1005EM, and 50 million units per month for both BKP0603HS•HM and BK0603TS•TM together. The sample price is $0.05 per unit for each of these.

Technology Background:
Small mobile devices, such as smartphones, require continued miniaturization and multi-functionality. Many circuits are densely packed into these devises and require provisions for EMC. This is especially the case for smartphones. High frequency noise has a greater impact as the currents are increased in power circuits to get higher performance. Ferrite chip beads are required given their capability of eliminating the noise in the higher frequency bands effectively.

To meet these market requirements, TAIYO YUDEN, through more sophisticated layering and pattern printing techniques, has combined both a low DC resistance and a high rated current. The impedance, which is so important in combating the problem of noise, has also been greatly improved in the high frequency band. TAIYO YUDEN’s lineup of chip bead inductors, BKP1005, BKP0603 and BK0603, has been expanded to be best suited for the ever-increasing high performance and efficiency of small mobile devices such as smartphones.

Applications:
To combat noise in the power and signal circuits of small mobile devices, such as smartphones and tablet PCs.
Multilayer chip bead inductor characteristics:

Ordering code	Impedance[Ω	Measuring freq [MHz	DC resistance [Ω	Rated current [mA
BKP1005EM100-T	10±25%	100	0.030	2,400
BKP1005EM300-T	30±25%	100	0.035	2,200
BKP1005EM600-T	60±25%	100	0.060	1,700
BKP1005EM121-T	120±25%	100	0.085	1,550
BKP1005EM221-T	220±25%	100	0.150	1,000
BKP1005EM331-T	330±25%	100	0.220	800
BKP0603HS100-T	10±5%	100	0.030	1,300
BKP0603HS800-T	80±25%	100	0.120	1,000
BKP0603HS121-T	120±25%	100	0.150	850
BKP0603HM100-T	10±5%	100	0.030	1,300
BKP0603HM800-T	80±25%	100	0.120	1,000
BKP0603HM121-T	120±25%	100	0.180	800
BK 0603TS800-T	80±25%	100	0.180	500
BK 0603TS121-T	120±25%	100	0.230	450
BK 0603TS241-T	240±25%	100	0.320	400
BK 0603TS601-T	600±25%	100	0.750	270
BK 0603TM800-T	80±25%	100	0.180	450
BK 0603TM121-T	120±25%	100	0.230	400
BK 0603TM241-T	240±25%	100	0.380	300
BK 0603TM601-T	600±5%	100	0.850	250

 To learn more about Taiyo Yuden’s BK Series of Inductors, please click here.

About TAIYO YUDEN:
Since its establishment in 1950, TAIYO YUDEN has invested in research and development to offer leading-edge technology to capacitors, inductors, circuit products, Surface Acoustic Wave (SAW)/Film Bulk Acoustic Resonator (FBAR) devices, energy devices and recording media under the philosophy that the process of product commercialization starts with material development.  Taiyo Yuden's extensive range of products demonstrates world-leading support to development and progress in the information technology and electronics industries. The company's North American affiliate, TAIYO YUDEN (U.S.A.) INC., operates sales and engineering offices in Chicago IL, Boston MA, Dallas TX, Denver CO, San Diego CA, San Jose CA, and Ontario, Canada.

For more information, visit www.t-yuden.com, or contact TAIYO YUDEN (U.S.A.) INC., 10 N. Martingale Rd., Suite 575, Schaumburg, IL 60173, Phone: (630) 237-2405, E-mail: sales@t-yuden.com.

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