Gowanda’s 28M272M is a high-quality, reliable molded unshielded RF coil designed for COTS applications. Weighing 2.65 grams and measuring 22.86 × 7.137 × 7.137 mm, this component is part of the 28M series and features through-hole technology (THT) for mounting. It offers an inductance of 27 µH with a minimum Q factor of 45, tested at a frequency of 2.5 MHz. The coil has a DC resistance of 0.35 Ω and a self-resonant frequency of 22 MHz, with a current rating of 0.66 A DC. It can withstand dielectric withstanding voltages of 1000 and 200, with a tolerance of ±20%. The termination type is lead-based with a Sn63Pb37 finish, and it uses a powdered iron core. Operating in temperatures ranging from -55°C to +125°C, it is rated MSL 1 and is packaged in tape and reel (T&R). Additionally, it is fungal inert, ensuring durability and 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 | ±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
