Gowanda’s SMRF1812S-331K is a molded shielded inductor designed for high reliability in electronic applications. Weighing 0.15 grams and measuring 4.2 × 3 × 2.9 mm, this component is part of the SMRF1812S series and is suitable for surface mount technology (SMT). It is classified as COTS+ grade, offering an inductance of 3.3 µH with a direct current resistance (DCR) of 0.264 ohms. The inductor supports a current rating of 0.87 A DC and a saturation current of 0.682 A DC, with a self-resonant frequency (SRF) of 45 MHz. Tested at a frequency of 7.9 MHz, it has a minimum quality factor (Q) of 40 and a tolerance of ±10%. The termination type is lead-based with a Sn63Pb37 finish, and it features a ferrite core with shielding. It operates 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). Additionally, it is fungal inert, ensuring durability in various environments.
| Weight | 0.15 g |
|---|---|
| Dimensions | 4.2 × 3 × 2.9 mm |
| Series | SMRF1812S |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.3 |
| DCR (Ω) | 0.264 |
| Current Rating (A DC) | 0.87 |
| Saturation Current (A DC) | 0.682 |
| SRF (MHz) | 45 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 40 |
| Tolerance | ±10% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Ferrite |
| Shielded | Yes |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Shielded Inductor
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