High-Temp Inductor with Higher Current Density for Multi-Phase Power Supplies
Vishay Intertechnology has introduced the first device in its new IHSR series of high-temperature commercial inductors. Designed for multi-phase, high current power supplies and filters in computer, industrial, and telecom applications, the Vishay Dale IHSR-4040DZ-51 offers a 50% reduction in DCR over typical power inductors and a 20% or greater profile reduction over similar ferrite products.
In addition, the inductor boasts an unprecedented standard DCR tolerance of 5%, with 3% available for more accurate current sensing.
Applications are expected to include: Energy storage in dc-dc converters and high current filtering up to the self-resonant frequency (SRF) of the inductor; Notebooks, desktop PCs, and servers; Low profile, high current power supplies and filters; and dc-dc converters for distributed power systems.
A low typical DCR and inductance allow for higher current density than competing technologies. The low profile package enables slimmer end products. These inductors are packaged in a 100% lead (Pb)-free shielded, composite construction that reduces buzz noise to ultra-low levels; and they feature high resistance to thermal shock, moisture, and mechanical shock.
Key Specifications:
Summary of specifications and features:
- Low typical DCR of 0.520mΩ
- Standard DCR tolerance of 5%, with 3% available
- Inductance of 0.130μH
- Low 4mm profile
- Frequency range up to 5MHz
- High temperature operation to +155°C
- Rated current to 92A
- Available in the 10mm by 10mm 4040 case size
- Additional case sizes will be offered in the future
- Handles high transient current spikes without saturation
- RoHS-compliant, halogen-free, and Vishay Green
Samples and production quantities of the new inductor are available now, with lead times of 12 weeks for large orders. Pricing for U.S. delivery only is $0.65 per piece in 5000-piece quantities.
