IHLP4040DZER1R8M11

The Vishay Dale IHLP4040DZER1R8M11 is a shielded molded fixed inductor from the IHLP-4040DZ-11 series. It offers an inductance of 1.8 µH ±20%, measured at 100 kHz and 0.25 V with no DC bias. The component is designed for low DC resistance, with a maximum value of 5.00 mΩ to minimize power losses. The heat rating current is 17 A DC, which will cause a temperature rise of approximately 40 °C, and the saturation current is 16 A DC, defined as the current causing a 20% drop in inductance. The operating temperature range spans -55 °C to +125 °C, and the rated operating voltage across the inductor is 50 V. The part is packaged in a nonstandard surface mount case with dimensions 10.80 mm x 10.16 mm x 4.00 mm, and is supplied in the 4040 form factor. The construction uses a magnetically shielded metal core for low electromagnetic interference. The moisture sensitivity level is MSL 1, indicating unlimited floor life, and the part withstands solder heat up to 260 °C for 30 seconds, with a maximum of three reflow cycles.

This inductor is well suited for DC/DC power supplies, smart grid and solar energy systems, telecommunications equipment, and noise suppression or filtering applications. The datasheet emphasizes that circuit design, PCB layout, and cooling provisions affect the part temperature, and the part temperature (ambient plus rise) should not exceed 125 °C under worst-case conditions. The material categorization for compliance definitions is available from the manufacturer.