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Automotive Grade IHLE High Current Inductor with Integrated E-Field Shield for Additional EMI Control

IHLE High Current Inductor
IHLE High Current Inductor

Vishay Intertechnology, Inc. has expanded its IHLE series of low profile, high current inductors featuring integrated E-field shields with a new second-generation Automotive Grade device in the 10 mm by 10 mm 4040 case size. Offering an improved shield design, and polarity marked for more consistent EMI performance, the new IHLE-4040DDEW-5A inductor lowers costs and saves board space by potentially eliminating the need for separate board-level Faraday shielding. This new power inductor is optimized for energy storage in switch mode power supplies and provides excellent noise attenuation when used as a DC power line choke. AEC-Q200 qualified, the device is designed for filtering and DC/DC conversion in entertainment/navigation systems; LED drivers; and noise suppression for motors, automotive domain control units (DCU), and other noise-sensitive applications.

Compared to traditional composite inductors, this device contains the electric and magnetic fields associated with EMI in a tin-plated copper integrated shield. When the shield is connected to ground, this inductor provides up to 20 dB reduction in radiated noise interference, and a further 6 dB reduction in magnetic flux leakage to minimize crosstalk to nearby board components. The inductor features continuous high temperature operation to +155 °C and improved operating and isolation voltage ratings of 75 V and 100 V, respectively. Packaged in a 100 % lead (Pb)-free, magnetically shielded, iron alloy encapsulant, it offers high resistance to thermal shock, moisture, and mechanical shock from the additional mounting support provided by its two shield terminals.


  • High temperature up to 155 °C
  • Improved shield design over standard IHLE
  • Higher operating voltage (75 V) and isolation voltage (100 V) ratings than previous generation


  • Automotive domain control units (DCU) and transmission / engine control
  • DC/DC converters for infotainment, navigation systems, braking systems
  • Noise suppression for motors, windshield wipers, audio, and power supplies

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