SMD automotive power inductors handle high temperatures and high currents

06-11-2020 | New Yorker Electronics | Passives

New Yorker Electronics now offers a new line of Sumida Inductors, designed for temperature, high-insulation voltage, high current and magnetic shielding. The new line of Sumida CDEP13D**/T150 power inductors continues the development of its AEC-Q200 qualified SMD inductors, as the new devices are an outgrowth of the CDEP15D**/T150 line.

Comprising of ten standard types and ten high-power types, the new devices provide a combination of four key benefits, when compared to numerous other inductors. Inductance values cover from 0.8µH to 22µH, with saturation current of up to 32A. It measures 13.5mm x 13.5mm x 10mm, as compared to the 2mm larger CDEP15D**/T150 line, which provides saturation current of up to 50.4µH. For durability, core and windings withstand a voltage of up to 120VDC.

The entire operating temperature range covers -40C to 150C (including coil’s self-temperature rise) and both product families are qualified to the Automotive AEC-Q200 reliability test requirements. The 150C temperature fulfils most under-hood automotive application needs, while the Mn-Zn ferrite core has high-magnetic permeability and low power losses at the higher switching frequencies currently found in automotive power circuits. High-frequency performance is additionally enhanced by the application of flat coil windings, which counteract ‘skin-effect,’ and lower DC resistance. Flat-coil windings are also much more space-efficient than round-wire coils, assisting to greatly reduce device size.

Popular automotive applications for these inductors comprise LED headlight driver modules, ADB, adaptive LED boards, DRL systems, PWD circuits, AFS, hybrid engine controls, PCM or any high-reliability application that needs to tolerate a wide temperature range.

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