Gowanda’s SMRF1812T-391J is a molded unshielded temperature stable inductor designed for high reliability in electronic applications. Weighing just 0.15 grams and measuring 4.2 × 3 × 2.9 mm, this component is part of the SMRF1812T series and is suitable for surface mount technology (SMT) applications. It is classified under the COTS+ application grade, offering an inductance of 3.9 µH with a direct current resistance (DCR) of 0.9 Ω and a current rating of 0.443 A DC. The inductor operates effectively up to a self-resonant frequency (SRF) of 42 MHz, with a test frequency of 7.9 MHz and a minimum Q factor of 28. It features a tolerance of ±5%, lead-based termination type with a Sn63Pb37 finish, and a powdered iron core. The component is not shielded, operates within a temperature range of -55°C to +125°C, and has a moisture sensitivity level (MSL) of 1. It is packaged in tape and reel (T&R) format and is fungal inert, ensuring durability and reliability in various environments.
| Weight | 0.15 g |
|---|---|
| Dimensions | 4.2 × 3 × 2.9 mm |
| Series | SMRF1812T |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.9 |
| DCR (Ω) | 0.9 |
| Current Rating (A DC) | 0.443 |
| SRF (MHz) | 42 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 28 |
| Tolerance | ±5% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Powdered Iron |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded Temperature Stable Inductor
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