Gowanda’s SMRF1512S-391MS is a shielded epoxy-coated chip inductor designed for high reliability in demanding applications. This component, part of the SMRF1512S series, features a compact size with dimensions of 3.94 × 3.175 × 3.56 mm and a weight of 0.12 g. It is suitable for surface mount technology (SMT) and is classified under the COTS+ application grade, ensuring it meets commercial off-the-shelf standards with enhanced reliability. The inductor offers an inductance of 3.9 µH, a direct current resistance (DCR) of 0.52 Ω, and a current rating of 0.31 A DC. It operates effectively across a frequency range with a self-resonant frequency (SRF) of 64 MHz and a test frequency of 7.9 MHz, achieving a minimum Q factor of 105. The device is designed to withstand dielectric withstanding voltages (DWV) of 200 and 500 volts, with a tolerance of ±20%. It features lead (Pb) termination type, compliant with RoHS standards, and is finished with Sn63Pb37 or SnCu. The core is made of ferrite, and the component is shielded to minimize electromagnetic interference. It operates reliably within a temperature range of -55°C to +125°C, has a moisture sensitivity level (MSL) of 1, and is available in tape and reel (T&R) packaging for efficient handling and installation.
| Weight | 0.12 g |
|---|---|
| Dimensions | 3.94 × 3.175 × 3.56 mm |
| Series | SMRF1512S |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.9 |
| DCR (Ω) | 0.52 |
| Current Rating (A DC) | 0.31 |
| SRF (MHz) | 64 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 105 |
| DWV | 200, 500 |
| Tolerance | ±20% |
| Termination Type | Pb, RoHS |
| Termination Finish | Sn63Pb37, SnCu |
| Core | Ferrite |
| Shielded | Yes |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
Shielded Epoxy-Coated Chip Inductor , COTS M83446/11
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