Gowanda’s 18M681M Molded Unshielded RF Coils are a high-quality component designed for reliable performance in various electronic applications. With a weight of 0.95 grams and compact dimensions of 11.125 × 4.775 × 4.775 mm, these coils are part of the 18M series and feature a through-hole mounting type (THT). They are suitable for commercial off-the-shelf (COTS) applications, offering an inductance of 6.8 µH and a minimum Q factor of 30 at a test frequency of 7.9 MHz. The coils have a direct current resistance (DCR) of 0.375 ohms and a self-resonant frequency (SRF) of 50 MHz, with a current rating of 0.56 A DC. They are designed to withstand a dielectric withstanding voltage (DWV) of 200 volts and have a tolerance of ±20%. The termination type is lead-based (Pb) with a Sn63Pb37 finish, and the core is made of powdered iron. These coils are not shielded but are fungal inert and can operate in temperatures ranging from -55°C to +125°C. They have a moisture sensitivity level (MSL) of 1 and are available in tape and reel (T&R) packaging.
| Weight | 0.95 g |
|---|---|
| Dimensions | 11.125 × 4.775 × 4.775 mm |
| Series | 18M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 6.8 |
| Q MIN | 30 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.375 |
| SRF (MHz) | 50 |
| Current Rating (A DC) | 0.56 |
| DWV | 200 |
| Tolerance | ±20% |
| 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
