Low profile wire-wound inductors offer highest current rating for component size
1 November 2006
Passive Components
Taiyo Yuden's NR6012 series of low-profile (1,2 mm height) 6 x 6 mm power inductors for DC-DC converter choke coil applications are in the LCD panels of notebook PCs. The 11 models in the NR6012 series offer a broad selection of low DC resistance (0,092-2,18 Ω) and high inductance ratings (3-100 μH), as well as what the company says is the industry's highest current rating (1730 mA) for the 6 x 6 mm device form factor.
In notebook PC applications, LCD power circuits require DC-DC converters with high current handling capability and a stable DC voltage supply. Posing a design challenge, the demand for lower-profile mobile equipment is driving a corresponding need for choke coils - the main component in DC-DC converters - with higher current capacity and a lower physical profile. However, boosting current capability necessitates increasing the size of the core and thickening the lead wire inside the inductor, both of which make reducing the size and profile of the device very difficult.
Taiyo Yuden responded to this design challenge by departing from the conventional round drum/sleeve core technology used in typical inductor designs. The company instead developed a unique sleeveless square-core winding that eliminates all wasted space and thickens the lead wire inside the inductor to achieve the lowest possible DC resistance. Moreover, the NR6012 series' special ferrite-based resin covering further reduces component size and enables the industry's highest available current rating of 1 A at 10 μH inductance.
Further reading:
High-endurance polymer tantalum capacitors
Passive Components
Panasonic Industry TDC Series POSCAP polymer tantalum capacitors deliver high endurance and reliable performance in demanding, high-temperature environments.
Read more...
Thin-film inductors for optical transceivers
RS South Africa
Passive Components
TDK has expanded its PLEC69B series (1,2 x 0,6 x 0,95 mm – L x W x H) of thin-film inductors, used for separating the data signal from the power in optical transceivers in AI data centres.
Read more...
Low-resistance MLCCs
RS South Africa
Passive Components
TDK Corporation has expanded its CN series of low-resistance soft-termination multilayer ceramic capacitors; achieving 22 nF capacitance in the 3225 case size.
Read more...
Ferrite cores with different shapes
RS South Africa
Passive Components
TDK Corporation has introduced a variety of new large-size ferrite cores with different core shapes, making this the industry’s largest lineup of shapes, sizes, and materials for such large cores.
Read more...
Vibration-resistant axial capacitors
RS South Africa
Passive Components
TDK Corporation has unveiled the B41699 and B41799 series of ultra-compact aluminium electrolytic capacitors, engineered to withstand operating temperatures of up to 140°C.
Read more...
Capacitors for demanding industrial applications
Passive Components
TDK Corporation has announced its X1 capacitors of the EPCOS B3291xH/J4 series for power line filtering of electromagnetic interferences in demanding automotive and industrial applications with a rated AC voltage of up to 480 V.
Read more...
Wide frequency range inductors
RS South Africa
Passive Components
TDK Corporation has expanded its ADL4524VL series
(4,5 x 2,4 x 2,6 mm – L x W x H) of wire-wound inductors for automotive power-over-coax.
Read more...
Cutting-edge hybrid capacitors
Avnet Silica
Passive Components
Panasonic Industry recently announced the launch of the ZVU Series Hybrid Capacitors, a cutting-edge solution tailored to meet the escalating demands of advanced electronic systems.
Read more...
Low-profile tantalum chip capacitors
Electrocomp
Passive Components
These general-purpose tantalum capacitors from Kyocera AVX are available in multiple case sizes with low profile options.
Read more...
Coupled inductor for high-performance applications
Passive Components
This coil with MnZn core is characterised by its high permeability and extremely low RDC values, which achieves excellent power density and very high efficiency.
Read more...
printer friendly version