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Gowanda’s SMRF1512S-331MS is a shielded epoxy-coated chip inductor designed for high reliability in demanding applications. This COTS M83446/11 grade component features a compact size with dimensions of 3.94 × 3.175 × 3.56 mm and a weight of 0.12 g, making it suitable for surface mount technology (SMT). It offers an inductance of 3.3 µH with a direct current resistance (DCR) of 0.46 Ω and a current rating of 0.33 A DC. The inductor operates effectively across a frequency range, with a self-resonant frequency (SRF) of 80 MHz and a test frequency of 7.9 MHz, ensuring a minimum quality factor (Q MIN) of 100. It is designed to withstand dielectric withstanding voltages (DWV) of 200 and 500, with a tolerance of ±20%. The component is lead (Pb) and RoHS compliant, featuring a termination finish of Sn63Pb37 or SnCu, and utilizes a ferrite core for enhanced performance. It is shielded to minimize electromagnetic interference and operates reliably within a temperature range of -55°C to +125°C, with a moisture sensitivity level (MSL) of 1. Packaged in tape and reel (T&R) format, it is ideal for automated assembly processes.
| Weight | 0.12 g |
|---|---|
| Dimensions | 3.94 × 3.175 × 3.56 mm |
| Series | SMRF1512S |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.3 |
| DCR (Ω) | 0.46 |
| Current Rating (A DC) | 0.33 |
| SRF (MHz) | 80 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 100 |
| 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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