744308040

The Würth Elektronik 744308040 is a high current shielded wirewound inductor from the WE-HCM series. It features a nominal inductance of 400 nH (tested at 100 kHz, 10 mA) with ±20% tolerance. The rated current is 25 A maximum at a 40 K temperature rise, with a performance rated current of 54.3 A per IEC 62024-2-2020. Saturation current is 23.8 A typical at 10% inductance drop and 28.3 A at 30% drop. DC resistance is 0.37 mΩ ±7%. Self-resonant frequency is 25 MHz typical. The inductor uses a manganese zinc ferrite (MnZn) drum core with flat wire winding, fully shielded. It is surface mountable in a nonstandard package measuring 10.10 mm x 7.00 mm x 7.50 mm. Operating temperature range is -40°C to +125°C. The component is RoHS, REACH, and halogen-free compliant, and qualified to AEC-Q200 Grade 1 for automotive applications. Typical applications include DC-DC converters, power supplies, and high current filtering in automotive and industrial electronics.