Sumida America Components Inc. has introduced the CDPQ****/T150 Series of high-current power inductors that are magnetically shielded and AEC-Q200 qualified. The new design of the inductors combines precision flat-wire windings and large tinned copper surface-mounting pads that maximizes current handling capacity.
The flat wire coil is closely wound together to increase its effective cross-sectional area and is encased in a high permeability ferrite core, which minimizes the physical size, Sumida said. The high-surface area of the flat-wire windings also help reduce internal resistance at high frequencies.
The CDPQ2014/T150, in a 14.5 × 21.4 × 23.5 mm footprint, is available in three inductance values: 1, 2.2 and 3.3 µH. The maximum saturation current ranges from 16 to 48 A at 150°C.
The larger CDPQ2717/T150, measuring 16.5 × 27.5 × 27.5 mm, offers a similar design and is available in three inductance values of 2.2, 3.3, and 4.7 µH. The maximum saturation current ranges from 16 to 48 A at 150°C.
Other specs for both inductors include an absolute maximum voltage (across the inductor) of 300 VDC and an operating temperature range of -40°C to 150°C (including the device’s self-temperature rise). Other values are available for OEM orders.
Applications include use as a buck/boost inductor for onboard chargers (OBC) in electric vehicles (xEV), DC/DC converters, point-of-load converters, computer peripherals, LED drivers, class D audio amplifiers, and other general high-performance power applications.
The devices are RoHS-compliant and halogen-free. They comply with IPC/JEDEC Moisture Sensitivity Level 1, for unlimited floor life at ≤30 °C/85% RH. Samples are available.