Vishay Intertechnology, Inc. today introduced three new commercial IHLP® low profile, high current inductors with high operating temperatures up to +155 °C in the 3.3 mm by 3.3 mm 1212 case size — the company’s smallest to date. Designed to save space in computer and telecom applications, the Vishay Dale IHLP-1212AZ-51, IHLP-1212AB-51, and IHLP-1212BZ-51 offer extremely low profiles down to 1.0 mm.
The devices released today are optimized for energy storage in DC/DC converters up to 5 MHz and provide excellent attenuation of noise in high current filtering applications up to the SRF of the inductor. Applications for the inductors include notebooks, desktops, and servers; low profile, high current power supplies; and distributed power systems and FPGAs.
Packaged in a 100 % lead (Pb)-free shielded, composite construction that reduces buzz to ultra low levels, the IHLP-1212AZ-51, IHLP-1212AB-51, and IHLP-1212BZ-51 offer high resistance to thermal shock, moisture, and mechanical shock, and they handle high transient current spikes without saturation. The devices are RoHS-compliant, halogen-free, and Vishay Green.
Device Specification Table:
| Part number | IHLP-1212AZ-51 | IHLP-1212AB-51 | IHLP-1212BZ-51 |
| Case size | 1212 | 1212 | 1212 |
| Profile (mm) | 1.0 | 1.2 | 2.0 |
| Inductance range (µH) | 0.10 to 1.0 | 0.10 to 1.2 | 0.10 to 3.3 |
| DCR typ. (mΩ) | 7.31 to 26.66 | 7.01 to 53.49 | 6.58 to 88.38 |
| DCR max. (mΩ) | 8.81 to 29.92 | 7.50 to 57.65 | 6.95 to 96.79 |
| Heat rating current (A) | 5.35 to 11.13 | 3.98 to 11.50 | 3.26 to 12.26 |
| Saturation current (A) | 4.43 to 7.38 | 3.84 to 11.79 | 2.52 to 13.46 |
| SRF typ. (MHz) | 152 to 440 | 82 to 455 | 40 to 380 |
| Operating temp. range (°C) | -55 to +155 | -55 to +155 | -55 to +155 |
Samples and production quantities of the new inductors are available now, with lead times of eight weeks for large orders.