Electronics and Semiconductors

APEC 2019: Miniature low-profile power inductors from TT Electronics

08 March 2019

TT Electronics has introduced the HA74 series of surface-mount power inductors that combine a low profile, small footprint and 3 MHz switching capability for efficient, space-saving DC/DC converters.

AEC-Q200 certified and specified for operation from -55° C to 155° C, the HA74 series is suitable for automotive use cases including the latest generation of high-density converters and pi filters for advanced driver assistance system (ADAS) controllers. The shielded inductors ensure low EMI and are highly resistant to corrosion.

The maximum height of 2.05 mm allows designers to create ultra-slimline modules for applications where height is a critical parameter. Leveraging the compact 5.5 mm x 5.5 mm footprint, with current ratings up to 2.9 A and DC resistance down to 74 mΩ, the HA74 series enables high power density and energy efficiency.

A 3 MHz switching capability allows use in high-frequency converter designs, making these compact inductors the ideal companion to the small high-frequency filter capacitors and helping to minimize module size and weight. TT’s low-loss metal-alloy core composition ensures high efficiency and low heating at elevated frequencies.

The complete HA74 family comprises 10 parts covering standard inductance values from 4.7 μH to 33 μH and current ratings from 1.2 A to 2.9 A. Semi-custom inductors conforming to individual customer specifications are also available through special order.

For more on APEC, visit our dedicated section Electronics360 covers APEC 2019.

To contact the author of this article, email engineering360editors@globalspec.com

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