21M391J

Gowanda’s 21M391J is a high-quality molded unshielded RF coil designed for reliable performance in various electronic applications. Weighing 1.7 grams and measuring 14.224 × 5.588 × 5.588 mm, this component is part of the 21M series and features through-hole technology (THT) mounting. It is suitable for commercial off-the-shelf (COTS) applications, offering an inductance of 3.9 µH with a minimum Q factor of 40 at a test frequency of 7.9 MHz. The coil has a direct current resistance (DCR) of 1.2 ohms and a self-resonant frequency (SRF) of 100 MHz, with a current rating of 0.44 A DC. It is designed to withstand dielectric withstanding voltages (DWV) of 1000 and 200 volts. The component has a tolerance of ±5% and features lead-based (Pb) termination with a Sn63Pb37 finish. Constructed with a phenolic core, it operates effectively in temperatures ranging from -55°C to +125°C and is rated at moisture sensitivity level (MSL) 1. Packaged in tape and reel (T&R) format, the 21M391J is also fungal inert, ensuring durability and reliability in demanding environments.