Automotive

Dual inductor saves space in class D amplifiers

30th September 2015
Nat Bowers

Expanding its IHLD series of low-profile, high-current dual inductors, Vishay Intertechnology has announced a new device in the 3232 case size. Operating over a wide temperature range from -55 to +155°C, the automotive-grade IHLD-3232HB-5A saves board space by combining two inductors in one 9.75x9.14mm package.

The inductor is optimised for automotive and commercial class D amplifier circuits, where it reduces board space requirements and offers improved performance over multiple individual inductors. The IHLD-3232HB-5A is designed for excellent inductance stability over temperature and DC current, providing high-quality sound and low harmonic distortion due to linear saturation performance. The inductor pair is designed with very low coupling for minimal crosstalk between inductors.

Built on Vishay's IHLP technology, the AEC-Q200-qualified inductor pair offers maximum DCR from 29.2 to 159.43mΩ, inductance from 5 to 33µH and rated current to 6.0A. Other values are available upon request.

Manufactured using a 100 % lead-free shielded, composite construction package, the IHLD-3232HB-5A features high resistance to thermal shock, moisture, mechanical shock and vibration.

Samples and production quantities of the dual inductor are available now, with lead times of 11 weeks for large orders.

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