The SRN4018TA-1R0M is a semi-shielded power inductor from Bourns' SRN4018TA series, designed for high-current switching applications. It features a 1.0 µH inductance at 100 kHz with ±20% tolerance, a self-resonant frequency of 160 MHz, and a DC resistance of 0.027 O. The inductor is rated for 3.7 A RMS current with a saturation current of 4 A, and operates reliably across a temperature range of -55°C to +125°C with a 40°C temperature rise at rated current. The ferrite core construction with enameled copper wire and magnetic epoxy resin coating provides semi-shielded performance, making it ideal for power conversion circuits, DC-DC converters, and other applications requiring low inductance values with high current handling capability. The device is AEC-Q200 qualified, RoHS compliant, and halogen-free, ensuring suitability for automotive and industrial applications.