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Vishay Launches New IHSR Series of High Temperature Commercial Inductor

For commercial applications, the Vishay Dale IHSR-4040DZ-51 features low DCR in 4040 case with slim 4 mm profile

Vishay Intertechnology Vishay Intertechnology has pioneered the first device in its new IHSR series of high-temperature commercial inductors. 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 and is designed for multi-phase, high current power supplies and filters in the computer, industrial, and telecom applications.

In addition, the inductor from Vishay boasts an unprecedented standard DCR tolerance of 5 %, with 3 % available for more accurate current sensing.

With a frequency range up to 5 MHz, the high-temperature commercial inductor is optimized 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-4040DZ-51’s low typical DCR of 0.520 mΩ and inductance of 0.130 µH allow for higher current density than competing technologies, while its 4 mm profile enables slimmer end products.

The inductor offers the high-temperature operation to +155 °C, rated current to 92 A, and handles high transient current spikes without saturation. The device is available in the 10 mm by 10 mm 4040 case size; additional case sizes will be offered in the future.

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-4040DZ-51 is RoHS-compliant, halogen-free, and Vishay Green.

Device Specification Table:

Case size4040
Profile (mm)4.0
Inductance (µH)0.130
DCR typ. (mΩ)0.520
DCR max. (mΩ)0.546
Heat rating current (A)72
Saturation current (A)63(1) / 92(2)
SRF typ. (MHz)151
(1) DC current (A) that will cause L0 to drop approximately 20 %
(2) DC current (A) that will cause L0 to drop approximately 30 %

Samples and production quantities of the new inductor are available now, with lead times of 12 weeks for large orders.

Further information on IHSR-4040DZ-51: Click here


Jyoti Gazmer

A Mass Comm. graduate believes strongly in the power of words. A book lover who dreams to own a library some day. An introvert but will become your closest friend if you share mutual feelings about COFFEE. I prefer having more puppies over humans.

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