SRN4018-3R3M is a semi-shielded power inductor from Bourns designed for compact DC/DC converter and power management applications. It features a 3.3 µH inductance with ±20% tolerance, a maximum DC resistance of 0.066 O, and supports an RMS current rating of 2.2 A with a saturation current of 2.3 A. The inductor operates across a temperature range of -40°C to +125°C and exhibits a self-resonant frequency of 45 MHz at 7.96 MHz test frequency. Its miniature semi-shielded construction with a low-profile height of 1.8 mm maximum makes it ideal for space-constrained applications such as notebook computers, digital video cameras, HDDs, cell phones, and LCD displays. The product is RoHS compliant and halogen-free, ensuring environmental compliance for modern electronics.