Gowanda’s 28M272K is a high-quality, reliable molded unshielded RF coil designed for various electronic applications. With a weight of 2.65 grams and dimensions of 22.86 × 7.137 × 7.137 mm, this component is part of the 28M series and features through-hole technology (THT) for mounting. It is suitable for commercial off-the-shelf (COTS) applications, offering an inductance of 27 µH with a minimum Q factor of 45 at a test frequency of 2.5 MHz. The coil has a direct current resistance (DCR) of 0.35 Ω and a self-resonant frequency (SRF) of 22 MHz, with a current rating of 0.66 A DC. It can withstand dielectric withstanding voltages (DWV) of 1000 and 200, with a tolerance of ±10%. The termination type is lead-based with a Sn63Pb37 finish, and the core is made of powdered iron. It operates effectively in temperatures ranging from -55°C to +125°C, has a moisture sensitivity level (MSL) of 1, and is packaged in tape and reel (T&R) format. Additionally, the component is fungal inert, ensuring reliability in various environments.
| Weight | 2.65 g |
|---|---|
| Dimensions | 22.86 × 7.137 × 7.137 mm |
| Series | 28M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 27 |
| Q MIN | 45 |
| Test Freq (MHz) | 2.5 |
| DCR (Ω) | 0.35 |
| SRF (MHz) | 22 |
| Current Rating (A DC) | 0.66 |
| DWV | 1000, 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
