Power

Inductors deliver low DCR, high current density

1st March 2019
Mick Elliott

The IHSR series of high saturation commercial inductors from Vishay Intertechnology has been extended with a device in the compact 4mm by 4mm 1616 case size. Designed for multi-phase, high current power supplies and filters in computer, industrial, and telecom applications, the Vishay Dale IHSR-1616AB-01 offers a 50% reduction in DCR over typical power inductors and standard DCR tolerance of 5%, with 3% tolerance available for more accurate current sensing.

With a frequency range up to 5MHz, the device is optimised for energy storage in DC/DC converters and high current filtering up to the self-resonant frequency (SRF) of the inductor.

Applications include notebooks, desktop PCs, and servers; low profile, high current power supplies and filters; and DC/DC converters for distributed power systems.

The IHSR-1616AB-01's low typical DCR down to 1.15mΩ and inductance up to 0.068µH allow for higher current density than competing technologies, while its low 1.2mm profile enables slimmer end products. The inductor offers high temperature operation to +125°C, rated current to 62A, and handles high transient current spikes without saturation.

Packaged in a 100% lead (Pb)-free shielded, composite construction that reduces buzz noise to ultra-low levels, the inductor offers high resistance to thermal shock, moisture, and mechanical shock.

The IHSR-1616AB-01 is RoHS-compliant, halogen-free, and Vishay Green.

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