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Home > Technology List > Power Inductors offer optimal DC bias characteristics.

Power Inductors offer optimal DC bias characteristics.

Update Time: 2019-12-19 12:21:38

Power Inductors offer optimal DC bias characteristics.

Schaumburg, IL - New from Taiyo Yuden, the NRS5020 (5.0 x 5.0mm, with a maximum height of 2.0mm) and the NR5040 (5.0 x 5.0mm, with a maximum height of 4.0mm) wire-wound power inductors offer the industry's best DC bias characteristics for 5mm square power inductors. Though more compact than conventional 6.0x6.0mm versions, Taiyo Yuden's new power inductors boast comparable performance.

The NRS5020's rated current (DC bias allowed current 2.0A, inductance 4.7µH) is 25% higher than Taiyo Yuden's previous same-shaped product (value of 1.6A)., while the DC resistance (60mW, inductance 4.7µH) of this new power inductor is 20% lower than the previous product (75mW). The NR5040 features an even higher rated current of 2.3A, with the widely used inductance of 10µH.

Digital equipment voltage conversion circuits generally use DC-DC converters. Power inductors used in DC-DC converters must have DC bias characteristics sufficient enough to prevent inductance from declining even when a high DC current is flowing. In addition, the trend in recent years toward more compact, thinner digital devices means that components like these must also be smaller than ever before. Both the NRS5020 and the NR5040 are designed for use in DC-DC converters in the latest digital equipment. The thin NRS5020 is ideal for small devices, including netbook PCs, Blu-ray drives and digital SLR cameras. The NR5040 is recommended for flat panel TVs, Blu-ray disc recorders and more.

The NRS5020 and the NR5040 are currently being produced in volume quantities. The sample price is $0.30/unit for both types.

 NRS5020 characteristics are shown below:

Ordering Code Inductance [µH Rdc [W Rated current max [A Saturation current Temperature rise current NRS5020T 1R0NMGJ 1.0 0.021 4.0 3.6 NRS5020T 1R5NMGJ 1.5 0.026 3.35 3.2 NRS5020T 2R2NMGJ 2.2 0.035 2.9 2.9 NRS5020T 3R3NMGJ 3.3 0.048 2.4 2.4 NRS5020T 4R7MMGJ 4.7 0.060 2.0 2.0 NRS5020T 6R8MMGJ 6.8 0.090 1.6 1.65 NRS5020T 100MMGJ 10 0.120 1.3 1.45 NRS5020T 150MMGJ 15 0.165 1.1 1.2 NRS5020T 220MMGJ 22 0.260 0.9 1.0

NR5040 characteristics are shown below:

Ordering Code Inductance[µH Rdc [W Rated current max [A Saturation current Temperature rise current NR5040T1R5N 1.5 0.020 6.0 3.6 NR5040T2R2N 2.2 0.022 4.6 3.5 NR5040T3R3N 3.3 0.027 3.8 3.3 NR5040T4R7N 4.7 0.029 3.3 3.1 NR5040T6R8M 6.8 0.049 2.6 2.3 NR5040T100M 10 0.056 2.3 2.1 NR5040T150M 15 0.080 2.0 1.8 NR5040T220M 22 0.126 1.6 1.4 NR5040T330M 33 0.180 1.3 1.2 NR5040T470M 47 0.130 1.1 0.9

About TAIYO YUDEN:
Now in its 59th year, Tokyo-based TAIYO YUDEN CO., LTD. is a worldwide manufacturer of surface-mount and leaded passive components, Bluetooth modules and CCFT inverters. With approximately 50% of the worldwide market in high-frequency multilayer chip inductors used in cell phones, the company reports annual sales of US$2.06B. Worldwide, TAIYO YUDEN employs more than twenty thousand people. The company's North American affiliate, TAIYO YUDEN (U.S.A.), INC., operates sales and engineering offices in Chicago IL, Boston MA, Raleigh NC, Irving TX, Denver CO and in California at San Jose and San Diego.

For more information, visit www.t-yuden.com, or contact TAIYO YUDEN (U.S.A.) INC., 1930 Thoreau Drive, Suite 190, Schaumburg, IL 60173, Phone: (847) 925-0888, E-mail: sales@t-yuden.com.

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