SMT inductors are targeting high-rel applications in the car

April 20, 2017 // By Christoph Hammerschmidt
The HME73E is a series of SMT miniature power inductors targeted at high-reliability applications in the automotive industry. The products are designed for high efficiency DC-DC applications where size is critical; their AEC-Q200 certification assures performance and reliability levels that automotive applications demand

The inductors are mechanically robust, magnetically shielded, and have been designed to maximize the inductance value and high saturation current for better performance.  They also have a lower DC resistance and an improved, lower temperature rise performance than their predecessors and other similar inductors in the marketplace.

Currently six models are available embracing current ratings from 15 to 65 A and operating over a wide temperature range of -50 to +155°C.  At 100 kHz, inductance ratings range from 3.76 uH for the smallest inductor to 0.19 uH for the largest, 65 A rated unit.  All of the inductors in the series feature a small 11.5 x 10.6 mm footprint size, with a height of 5.9 mm.

RoHS compliant and AEC-Q200 certified, TT Electronics' HM73E-10 series inductors will be of interest to system designers, component engineers and design engineers for use in automotive powertrains, engine and transmission control, hybrid electric vehicles, start-and-stop system and electric power steering applications.  Industrial applications include switch mode power supplies, automation systems and DC/DC converters.

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