Gowanda’s 18M391K is a high-quality, reliable electronic component designed for demanding applications. This molded unshielded RF coil weighs 0.95 grams and measures 11.125 × 4.775 × 4.775 mm. Part of the 18M series, it features through-hole technology (THT) mounting and is suitable for commercial off-the-shelf (COTS) applications. With an inductance of 3.9 µH and a minimum Q factor of 30, it operates at a test frequency of 7.9 MHz. The component has a DC resistance of 0.155 ohms, a self-resonant frequency of 65 MHz, and a current rating of 0.87 A DC. It is built with a powdered iron core and has a dielectric withstanding voltage of 200. The coil is not shielded and operates within a temperature range of -55°C to +125°C. It features a Pb termination type with a Sn63Pb37 finish, is rated MSL 1, and is packaged in tape and reel (T&R). Additionally, it is fungal inert, ensuring durability in various environments.
| Weight | 0.95 g |
|---|---|
| Dimensions | 11.125 × 4.775 × 4.775 mm |
| Series | 18M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 3.9 |
| Q MIN | 30 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.155 |
| SRF (MHz) | 65 |
| Current Rating (A DC) | 0.87 |
| DWV | 200 |
| 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 RF Coils
