Flat wire SMD power inductors with 150°C operation

September 25, 2020 //By Nick Flaherty
Flat wire SMD power inductors with 150°C operation
The TCDEP13D/T150 line from Sumida consists of ten standard types and ten high-power types with high temperature, high current, high-insulation voltage, and magnetic shielding.

Sumida has expanded its range of AEC-Q200 qualified SMD inductors with higher temperature and voltage operation.

TCDEP13D/T150 line consists of ten standard types and ten high-power types with high temperature, high current, high-insulation voltage, and magnetic shielding.

Inductance values range from 0.8 to 22 µH, with saturation current of up to 32 amps. Measuring 13.5 x 13.5 x 10 mm, the new products are an outgrowth of the CDEP15D/T150 line, which are 2mm larger and offers saturation current of up to 50.4 µH. For durability, core and windings can withstand a voltage of up to 120 Vdc.

Full operating temperature range is -40 °C to 150 °C (including coil’s self-temperature rise) and both product families are qualified to the Automotive AEC-Q200 reliability test requirements. The 150 °C temperature satisfies most under-hood automotive application requirements, while the Mn-Zn (Manganese-Zinc) ferrite core has high-magnetic permeability and low power losses at the higher switching frequencies now found in automotive power circuits. High-frequency performance is further 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, helping to significantly reduce device size.

The part geometry provides very effective magnetic shielding, which is of growing importance because of the push towards smaller, more densely-packed automotive circuits. Unchecked, radiated EMI/RFI can also affect the operation of other circuits nearby.

Popular automotive applications for these inductors include: LED Headlight Driver Modules, Adaptive Driving Beam (ADB), Adaptive LED Boards, Daylight Running Light (DRL) systems, Pulse Width Dimming (PWD) circuits, AFS (Adaptive Front-lighting System), Hybrid Engine Controls, Powertrain Control Modules (PCM) or any high-reliability application that must tolerate a wide temperature range.    

The CDEP13D/T150 Series and CDEP15D/T150 power inductors are in-stock at Digi-Key.

www.sumida.com

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