SMRF1812T-391M

The SMRF1812T-391M is a molded unshielded temperature stable inductor from Gowanda, designed for high reliability in electronic applications. Weighing 0.15 grams and measuring 4.2 × 3 × 2.9 mm, this inductor is part of the SMRF1812T series and features surface mount technology (SMT) for easy integration. It is classified under the COTS+ application grade, offering an inductance of 3.9 µH with a direct current resistance (DCR) of 0.9 Ω and a current rating of 0.443 A DC. The self-resonant frequency (SRF) is 42 MHz, tested at a frequency of 7.9 MHz, with a minimum Q factor of 28 and a tolerance of ±20%. The inductor uses a powdered iron core and has a termination type of Pb with a Sn63Pb37 finish. It operates effectively within a temperature range of -55°C to +125°C, has a moisture sensitivity level (MSL) of 1, and is packaged in tape and reel (T&R) format. Additionally, it is fungal inert, ensuring durability in various environments.