Gowanda’s SMRF1210S-391G is a high-quality molded shielded inductor designed for reliable performance in electronic applications. Weighing just 0.05 grams and measuring 3 × 2.16 × 2.06 mm, this component is part of the SMRF1210S series and is suitable for surface mount technology (SMT). It is crafted for COTS+ application grade, offering an inductance of 3.9 µH with a direct current resistance (DCR) of 0.83 Ω and a current rating of 0.441 A DC. The inductor features a self-resonant frequency (SRF) of 42 MHz and is tested at a frequency of 7.9 MHz, with a minimum quality factor (Q MIN) of 40 and a tolerance of ±2%. It utilizes a ferrite core and has a termination type of Pb with a Sn63Pb37 finish. Although not shielded, it operates efficiently within a temperature range of -55°C to +125°C and has a moisture sensitivity level (MSL) of 1. Packaged in tape and reel (T&R) format, it is also fungal inert, ensuring durability and reliability in various environments.