Automotive grade inductors lower costs and save space

Vishay has expanded its IHLE series of low-profile, high-current inductors featuring integrated e-shields for reduction of EMI with new automotive grade devices in the 2525, 3232, and 4040 case sizes. The Vishay Dale IHLE-2525CD-5A, IHLE-3232DD-5A, and IHLE-4040DD-5A lower costs and save board space by eliminating the need for separate board-level Faraday shielding. The devices contain the electric field associated with EMI in a tin-plated copper integrated shield, providing up to -20dB of electric field reduction at 1 cm (above the center of the inductor) when the integrated shield is connected to ground. Featuring high-temperature operation to +155C and coplanarity of their four terminals within =100µm, the AEC-Q200-qualified inductors released today are optimized for energy storage in DC-DC converters and high-current filtering for automotive engine and transmission control units, diesel injection drivers, noise suppression for motors, windshield wipers, power mirrors and seats, entertainment / navigation systems, and HID lighting. In addition, the devices' four-terminal connection (two ground connection points for the shield) provides high-vibration performance for on-engine and chassis-mounted electronic circuits. Built on Vishay Dale IHLP technology, the devices feature high efficiency with typical DCR from 1.55mohm to 167mohm and a wide range of inductance values from 0.22µH to 47µH. The devices provide rated currents to 36A and handle high transient current spikes without saturation. Packaged in an RoHS-compliant, 100% lead (Pb)-free shielded construction, the inductors offer high resistance to thermal shock, moisture, and mechanical shock. The devices are halogen-free and Vishay Green.