Integrated e-shield inductors available in 5050 case size

By Gina Roos, editor-in-chief

Vishay Intertechnology, Inc. has extended its IHLE series of low-profile, high-current inductors featuring integrated e-shields to reduce electromagnetic interference (EMI) with new commercial- and automotive-grade devices in the 5050 case size. By eliminating the need for separate board-level Faraday shielding, the Vishay Dale IHLE-5050FH-51  and IHLE-5050FH-5A  inductors lower costs and save board space.

These new devices include the electric and B field associated with EMI in a tin-plated copper integrated shield, providing up to –20 dB of electric field reduction at 1 cm (above the center of the inductor) when the integrated shield is connected to ground, said Vishay. Other features include high-temperature operation to 155°C and coplanarity of the four terminals within ≤100 µm.

The inductors are optimized for energy storage in DC/DC converters up to 2 MHz and provide excellent attenuation of noise in high-current filtering applications up to the SRF of the inductor. Applications for the IHLE-5050FH-51 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 targets 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.

The inductors offer high resistance to thermal shock, moisture, and mechanical shock and handle high transient current spikes without saturation. In addition, the 100% lead-free shielded, composite construction reduces buzz to ultra-low levels. The IHLE-5050FH-51 and IHLE-5050FH-5A are RoHS-compliant, halogen-free, and Vishay Green.

Samples and production quantities are available with lead times of nine weeks for large orders. Pricing for U.S. delivery starts at $0.90 per piece in quantities of 10,000.