Dual inductor saves space and offers highest temperature range for Class D amplifiers

Latest from Vishay is the first device in its new IHLD series of low-profile, high-current dual inductors. Offering two inductors in one 4032 package, the space-saving automotive-grade IHLD-4032KB-5A is the industry's first dual inductor to offer a high operating temperature range to +155C, says the company. The dual inductor is optimized for automotive and commercial class D amplifier circuits, where the device reduces board space requirements and offers improved performance over using multiple discrete inductors. The IHLD-4032KB-5A's optimal design produces high-quality sound, low distortion, and low coupling for minimal cross-talk between inductors. Built on Vishay's IHLP technology, the AEC-Q200-qualified inductor offers maximum DCR from 32.6mohm to 107mohm, inductance from 10µH to 33µH, rated current to 5.6A, and a frequency range up to 1MHz. The device handles high transient current spikes without saturation and has excellent temperature stability for inductance and saturation over its operating range. Manufactured using a 100% lead (Pb)-free shielded, composite construction package, the IHLD-4032KB-5A is specified for an operating temperature range of 55C to +155C, with high resistance to thermal shock, moisture, mechanical shock, and vibration. Samples and production quantities are available now, says the company.