On February 20, 2014, Vishay Intertechnology, Inc. (NYSE: VSH) announced the launch of a new series of inductors utilizing its IHLP technology. These components are ideal for use in coupled inductor SEPIC DC/DC converters and other applications. The Vishay Dale IHCL series features a compact 4040 form factor, housing two inductors in a single package. With magnetic coupling exceeding 90%, it operates at temperatures up to +155°C and offers eight different inductance values ranging from 2.2μH to 47μH.
The recently released IHCL inductor is designed to handle high transient current spikes without experiencing hard saturation. It operates at a frequency of 5MHz, making it particularly suitable for automotive LED lighting applications. The device is integrated into a small 4.0mm high package measuring 10.16mm x 10.67mm, allowing engineers to design more compact, efficient, and cost-effective SEPIC converter circuits. Additionally, the IHCL series can be used in common mode applications.
The IHCL series is packaged in a RoHS-compliant, fully lead-free shielded structure that significantly reduces noise levels. It can operate in extreme temperature ranges, from -55°C to +155°C, and is highly resistant to thermal shock, humidity, and mechanical stress such as vibration and impact.
Below is the detailed specification sheet for the IHCL series:
| Product Number | Inductance @ 100 kHz, 0.25V, 0A | Nominal DCR @ 25°C | Maximum DCR @ 25°C | Typical DC Heat | Typical Saturation DC |
|------------------------|----------------------------------|--------------------|--------------------|-----------------|-----------------------|
| IHCL-4040DZ-5A 2.2 μH | 2.2 μH | 13.0 mΩ | 15.0 mΩ | 9.5 A | 11.0 A |
| IHCL-4040DZ-5A 2.7 μH | 2.7 μH | 15.9 mΩ | 17.0 mΩ | 9.3 A | 11.0 A |
| IHCL-4040DZ-5A 4.7 μH | 4.7 μH | 28.0 mΩ | 30.0 mΩ | 6.2 A | 9.0 A |
| IHCL-4040DZ-5A 10 μH | 10 μH | 90.6 mΩ | 97.0 mΩ | 4.3 A | 8.0 A |
| IHCL-4040DZ-5A 15 μH | 15 μH | 109.0 mΩ | 116.6 mΩ | 3.3 A | 6.0 A |
| IHCL-4040DZ-5A 22 μH | 22 μH | 177.0 mΩ | 189.6 mΩ | 2.5 A | 4.75 A |
| IHCL-4040DZ-5A 33 μH | 33 μH | 165.0 mΩ | 176.2 mΩ | 2.6 A | 2.5 A |
| IHCL-4040DZ-5A 47 μH | 47 μH | 241.0 mΩ | 257.5 mΩ | 2.2 A | 2.7 A |
Samples of the IHCL series are currently available, with volume production already underway. For larger orders, the lead time is approximately eight to ten weeks. This innovative product provides engineers with a reliable and space-efficient solution for advanced power conversion designs.
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