Gowanda’s SMRF1812T-221K 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 inductor is part of the SMRF1812T series and is suitable for surface mount technology (SMT). It features an inductance of 2.2 µH, a DC resistance of 0.66 Ω, and a current rating of 0.518 A DC. With a self-resonant frequency of 56 MHz and a minimum Q factor of 30, it operates effectively within a frequency range tested at 7.9 MHz. The inductor has a tolerance of ±10% and uses a powdered iron core, with a termination type of Pb and a finish of Sn63Pb37. It is capable of functioning in temperatures ranging from -55°C to +125°C and is rated at moisture sensitivity level 1. Packaged in tape and reel (T&R), it is also fungal inert, making it suitable for commercial off-the-shelf plus (COTS+) applications.
| Weight | 0.15 g |
|---|---|
| Dimensions | 4.2 × 3 × 2.9 mm |
| Series | SMRF1812T |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 2.2 |
| DCR (Ω) | 0.66 |
| Current Rating (A DC) | 0.518 |
| SRF (MHz) | 56 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 30 |
| Tolerance | ±10% |
| 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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