NRS5020 and NR5040 Power Inductors

Taiyo Yuden's compact, low-profile 5mm square power inductors

Taiyo Yuden's offers 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. More compact than conventional 6.0 x 6.0mm versions, Taiyo Yuden's 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 (60mΩ, inductance 4.7µH) of this new power inductor is 20% lower than the previous product (75mΩ). 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 components like these must also be smaller than ever before. Both the NRS5020 and 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.


  • Netbook PCs
  • Blu-ray drives
  • Digital SLR cameras
  • Flat panel TVs
  • Blu-ray disc recorders


Manufacturer Part Number Description Available Quantity Datasheets
NRS5020T1R0NMGJ INDUCTOR 1.0UH 3.6A 30% SMD 1664
NRS5020T1R5NMGJ INDUCTOR 1.5UH 3.2A 30% SMD 18871
NRS5020T2R2NMGJ INDUCTOR 2.2UH 2.9A 30% SMD 5291
NRS5020T3R3NMGJ INDUCTOR 3.3UH 2.4A 30% SMD 15062
NRS5020T4R7MMGJ INDUCTOR 4.7UH 2.0A 20% SMD 7879
NRS5020T6R8MMGJ INDUCTOR 6.8UH 1.65A 20% SMD 6828
NRS5020T100MMGJ INDUCTOR 10UH 1.45A 20% SMD 14430
NRS5020T150MMGJ INDUCTOR 15UH 1.2A 20% SMD 7471
NRS5020T220MMGJ INDUCTOR 22UH 1.0A 20% SMD 7306


Manufacturer Part Number Description Available Quantity Datasheets
NR5040T100M INDUCTOR 10UH 2.1A 20% SMD 12466
NR5040T150M INDUCTOR 15UH 1.8A 20% SMD 9330
NR5040T1R5N INDUCTOR 1.5UH 3.6A 30% SMD 20463
NR5040T220M INDUCTOR 22UH 1.4A 20% SMD 20739
NR5040T2R2N INDUCTOR 2.2UH 3.5A 30% SMD 1586
NR5040T330M INDUCTOR 33UH 1.2A 20% SMD 13304
NR5040T3R3N INDUCTOR 3.3UH 3.3A 30% SMD 25082
NR5040T470M INDUCTOR 47UH .9A 20% SMD 11711
NR5040T4R7N INDUCTOR 4.7UH 3.1A 30% SMD 37586
NR5040T6R8M INDUCTOR 6.8UH 2.3A 20% SMD 11638