Gowanda’s SMRF1812-391KLF is a high-quality molded unshielded inductor designed for demanding applications, featuring a compact size with dimensions of 4.064 × 3 × 2.9 mm and a weight of 0.15 g. This inductor is part of the SMRF1812 series and is suitable for surface mount technology (SMT) with a COTS+ application grade. It offers an inductance of 3.9 µH, a direct current resistance (DCR) of 0.9 Ω, and a current rating of 0.472 A DC. The inductor operates effectively within a frequency range, with a self-resonant frequency (SRF) of 40 MHz and a test frequency of 7.9 MHz, maintaining a minimum quality factor (Q MIN) of 50. It is built with a ferrite core and is not shielded, ensuring reliable performance across a wide operating temperature range of -55°C to +125°C. The product is RoHS compliant with Sn100 termination finish, has a moisture sensitivity level (MSL) of 1, and is packaged in tape and reel (T&R) format. Additionally, it is fungal inert, making it suitable for various industrial applications.
| Weight | 0.15 g |
|---|---|
| Dimensions | 4.064 × 3 × 2.9 mm |
| Series | SMRF1812 |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.9 |
| DCR (Ω) | 0.9 |
| Current Rating (A DC) | 0.472 |
| SRF (MHz) | 40 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 50 |
| Tolerance | ±10% |
| Termination Type | RoHS |
| Termination Finish | Sn100 |
| Core | Ferrite |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded Inductor, COTS M83446/39
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