Gowanda’s 21M272MLF is a high-quality, reliable molded unshielded RF coil designed for 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 27 µH with a minimum Q factor of 60 at a test frequency of 2.5 MHz. The coil has a DC resistance of 1.3 ohms and a self-resonant frequency of 22 MHz, with a current rating of 0.275 A DC. It can withstand dielectric withstanding voltages of 1000 and 200 volts, with a tolerance of ±20%. The termination is RoHS compliant with a Sn/Cu finish, and the core is made of powdered iron. Operating in temperatures ranging from -55°C to +105°C, it is rated MSL 1 and comes in tape and reel packaging. Additionally, it is fungal inert, ensuring durability and reliability in various environments.
| Weight | 1.7 g |
|---|---|
| Dimensions | 14.224 × 5.588 × 5.588 mm |
| Series | 21M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 27 |
| Q MIN | 60 |
| Test Freq (MHz) | 2.5 |
| DCR (Ω) | 1.3 |
| SRF (MHz) | 22 |
| Current Rating (A DC) | 0.275 |
| DWV | 1000, 200 |
| Tolerance | ±20% |
| Termination Type | RoHS |
| Termination Finish | Sn/Cu |
| Core | Powdered Iron |
| Shielded | No |
| Operating Temperature | -55°C to +105°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded RF Coils
