Firm Taiyo Yuden introduced to production low profile wire coils with series NR... about sizes 3x3; 4x4; 6x6; 8x8, as well as height from 1mm to 4.5 mm. The small sizes of coils characterize with small resistance as well as they have the large current of leadership in relation to external dimensions.
Executed in magnetical screen from resistant material on mechanical damages coils. Designed mainly to uses in circuits power supply. More information on manufacturer's side: Taiyo Yuden
Example data:
1 NR3010T100M 10uH/500mA 3x3 h=1.0mm
2 NR4018T100M 10uH/1200mA 4x4 h=1.8mm
3 NR6045T100M 10uH/3000mA 6x6 h=4.5mm
4 NR8040T100M 10uH/3400mA 8x8 h=4.0mm