Automotive-grade dual inductor saves space in Class D amplifiers

Vishay has expanded its IHLD series of low-profile, high-current dual inductors with a new device in the 3232 case size. Offering a high operating temperature range to +155C, the automotive-grade IHLD-3232HB-5A saves board space by combining two inductors in one 9.75mm x 9.14mm package. The inductor is optimized for automotive and commercial class D amplifier circuits, where the device reduces board space requirements and offers improved performance over multiple individual inductors. In addition, 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 proprietary IHLP technology, the AEC-Q200-qualified inductor pair offers maximum DCR from 29.2mohm to 159.43mohm, inductance from 5µH to 33µH, and rated current to 6A. Other values are available upon request. Manufactured using a 100% lead (Pb)-free shielded, composite construction package, the IHLD-3232HB-5A is specified for an operating temperature range of 55C to +155C, with high resistance to thermal shock, moisture, mechanical shock, and vibration.