Vishay Intertechnology, Inc. announced the second-generation of its automotive-grade IHLE series of low profile, high current inductors with integrated E-field shields. Measuring 10 × 10 mm in a 4040-case size, the Vishay Dale IHLE-4040DDEW-5A power inductors lower costs and save board space by eliminating the need for separate board-level Faraday shielding.
The company claims an improved shield design over previous-generation solutions, delivering higher voltage ratings and a reduction in radiated noise interference, as well as more consistent electromagnetic interference (EMI) performance thanks to polarity marking.
(Source: Vishay Intertechnology)
Applications include filtering and DC/DC conversion in entertainment / navigation systems; LED drivers; and noise suppression for motors, automotive domain control units and other noise-sensitive applications.
The IHLE-4040DDEW-5A series is optimized for energy storage in switch mode power supplies and is reported to provide excellent noise attenuation as a DC power line choke. The inductors provide a continuous high temperature operation to 155°C and higher operating and isolation voltage ratings of 75 V and 100 V, respectively.
The series features the electric and magnetic fields associated with EMI in a tin-plated copper integrated shield, Vishay said. When the shield is connected to ground, the IHLE-4040DDEW-5A provides up to 20 dB reduction in radiated noise interference, and further provides a 6 dB reduction in magnetic flux leakage, minimizing crosstalk to board components, the company added.
Key specs for IHLE-4040DDEW-5A power inductors
(Source: Vishay Intertechnology)
Housed in a 100% lead-free, magnetically-shielded, iron alloy encapsulant, the IHLE-4040DDEW-5A power inductors provide high resistance to thermal shock, moisture and mechanical shock thanks to the additional mounting support provided by its two shield terminals. The inductors is RoHS-compliant, halogen-free and Vishay Green. The series is AEC-Q200 qualified.
Samples and production quantities of the IHLE-4040DDEW-5A are currently available, with lead times of 16 weeks. Pricing for U.S. delivery starts at $0.65 each in quantities of 10, 000.
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