Gowanda’s 21M680M is a high-quality molded unshielded RF coil designed for reliable performance in various electronic applications. Weighing 1.7 grams and measuring 14.224 × 5.588 × 5.588 mm, this component is part of the 21M series and features through-hole technology (THT) mounting. It is suitable for commercial off-the-shelf (COTS) applications, offering an inductance of 0.68 µH with a minimum Q factor of 65 at a test frequency of 25 MHz. The coil has a direct current resistance (DCR) of 0.08 Ω and a self-resonant frequency (SRF) of 240 MHz, with a current rating of 1.7 A DC. It can withstand dielectric withstanding voltages (DWV) of 1000 and 200, with a tolerance of ±20%. The termination type is lead-based (Pb) with a Sn63Pb37 finish, and it features a phenolic core. Operating effectively in temperatures ranging from -55°C to +125°C, it has a moisture sensitivity level (MSL) of 1 and is packaged in tape and reel (T&R) format. Additionally, it is fungal inert, ensuring durability and reliability in demanding environments.
| Weight | 1.7 g |
|---|---|
| Dimensions | 14.224 × 5.588 × 5.588 mm |
| Series | 21M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 0.68 |
| Q MIN | 65 |
| Test Freq (MHz) | 25 |
| DCR (Ω) | 0.08 |
| SRF (MHz) | 240 |
| Current Rating (A DC) | 1.7 |
| DWV | 1000, 200 |
| Tolerance | ±20% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Phenolic |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded RF Coils
