Integrated E-Shield Inductors Lower Costs and Save SpaceMarch 30, 2020 by Paul Shepard
Vishay Intertechnology, Inc. has expanded its IHLE® series of low profile, high current inductors featuring integrated e-shields for the reduction of EMI with new commercial and automotive grade devices in the 5050 case size. The Vishay Dale IHLE-5050FH-51 and IHLE-5050FH-5A lower costs and save board space by eliminating the need for separate board-level Faraday shielding.
The devices released today contain the electric and B field associated with EMI in a tin-plated copper integrated shield, providing up to -20dB of electric field reduction at 1cm (above the center of the inductor) when the integrated shield is connected to ground.
Featuring high temperature operation to +155°C and coplanarity of their four terminals within ≤100µm, the inductors are optimized for energy storage in dc-dc converters up to 2MHz and provide excellent attenuation of noise in high current filtering applications up to the SRF of the inductor.
Applications for the IHLE-5050FH-51 will include servers and desktop PCs; high current POL converters; low profile, high current power supplies; and battery-powered devices. The AEC-Q200 qualified IHLE-5050FH-5A will be used in automotive engine and transmission control units, diesel injection drivers, noise suppression for motors, windshield wipers, power mirrors and seats, entertainment / navigation systems, heating and ventilation blowers, and LED and HID lighting.
Packaged in a 100% lead (Pb)-free shielded, composite construction that reduces buzz to ultra low levels, the inductors offer high resistance to thermal shock, moisture, and mechanical shock, and handle high transient current spikes without saturation. The IHLE-5050FH-51 and IHLE-5050FH-5A are RoHS-compliant, halogen-free, and Vishay Green.
Samples and production quantities of the new IHLE devices are available now, with lead times of nine weeks for large orders. Pricing for U.S. delivery only starts at $0.90 per piece in 10,000-piece quantities.