Automotive Grade IHLE Integrated E-Field Shield Inductors Provide Excellent Attenuation of Noise in High Current Filtering Applications

Vishay Intertechnology, Inc. has expanded its IHLE series of low profile, high current inductors with two new devices IHLE-2020CD-51 and IHLE-2020CD-5A in the 5mm by 5mm by 3.4mm 2020 case size that feature integrated E-field shields for the reduction of EMI. These new commercial and automotive grade devices are optimized for energy storage in DC/DC converters up to 3 MHz and provide excellent attenuation of noise in high current filtering applications up to the SRF of the inductor.  

Featuring high-temperature operation to +155°C and coplanarity of their four terminals within ≤ 100 µm, these devices contain 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 when the integrated shield is connected to ground. 

Features

• High temperature, continuous operation up to 155°C

• Patented shielded construction

• Excellent DC/DC energy storage up to 2 MHz

• Filter inductor applications up the SRF (see standard electrical specifications table)

• Integrated E-Field shield eliminates the need for separate shielding

• Up to 20 dB E-Field reduction at 1 cm - Measured vertically from top center of device

• B-Field is contained by powdered iron encapsulation

• Low DCR/μH

• Handles high transient current spikes without saturation

• AEC-Q200 qualified

Applications for the IHLE-2020CD-51 will include servers and desktop PCs; notebooks; high current POL converters; low profile, high current power supplies; FPGAs; and battery-powered devices. The AEC-Q200 qualified IHLE-2020CD-5A will be used in automotive engine and transmission control units; entertainment/navigation systems; LED drivers; instrumentation panels; ADAS devices/sensors; and noise suppression for PWM-controlled motors.