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Gowanda’s SMRF1812-471M is a high-quality molded unshielded inductor designed for demanding applications, adhering to COTS M83446/39 standards. Weighing just 0.15 grams, it features compact dimensions of 4.064 × 3 × 2.9 mm and is suitable for surface mount technology (SMT). With an inductance of 4.7 µH and a direct current resistance (DCR) of 1 Ω, it supports a current rating of 0.448 A DC. The inductor operates effectively across a frequency range, with a self-resonant frequency (SRF) of 35 MHz and a test frequency of 7.9 MHz, maintaining a minimum Q factor of 50. It offers a tolerance of ±20% and is constructed with a ferrite core, featuring a lead-based termination type with a Sn63Pb37 finish. The product is designed to operate in extreme temperatures ranging from -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 reliability in various environments.
| Weight | 0.15 g |
|---|---|
| Dimensions | 4.064 × 3 × 2.9 mm |
| Series | SMRF1812 |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 4.7 |
| DCR (Ω) | 1 |
| Current Rating (A DC) | 0.448 |
| SRF (MHz) | 35 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 50 |
| Tolerance | ±20% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| 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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