SDE0403A-4R7M is an automotive-grade SMD power inductor from the SDE0403A series, featuring a 4.7 µH inductance with ±20% tolerance and a self-resonant frequency of 50 MHz. The inductor delivers a rated RMS current of 1.65 A with a saturation current of 2.2 A, and exhibits a typical DC resistance of 0.0645 O (maximum 0.108 O) at 25°C. Housed in a compact 4.5 × 4.0 × 3.2 mm surface-mount package, it is AEC-Q200 compliant, RoHS compliant, and halogen-free, meeting automotive reliability standards. The device operates across a temperature range of -40°C to +125°C with a typical temperature rise of 40°C at rated current, making it suitable for automotive power management, DC-DC converters, and switching power supplies where space and thermal performance are critical.