Gowanda’s 28M471M Molded Unshielded RF Coils are high-quality electronic components designed for reliable performance in various applications. These coils weigh 2.65 grams and have dimensions of 22.86 × 7.137 × 7.137 mm. They belong to the 28M series and are mounted using Through-Hole Technology (THT). With an inductance of 4.7 µH and a minimum Q factor of 60, these coils are suitable for COTS-grade applications. They operate at a test frequency of 7.9 MHz, with a DC resistance of 0.56 Ω and a self-resonant frequency of 90 MHz. The current rating is 0.86 A DC, and they can withstand dielectric withstanding voltages of 1000 and 200. The coils have a tolerance of ±20% and feature Pb termination with a Sn63Pb37 finish. Constructed with a phenolic core, they are not shielded but are fungal inert and have an operating temperature range from -55°C to +105°C. They are rated at MSL 1 and are available in tape and reel packaging.
| Weight | 2.65 g |
|---|---|
| Dimensions | 22.86 × 7.137 × 7.137 mm |
| Series | 28M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 4.7 |
| Q MIN | 60 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.56 |
| SRF (MHz) | 90 |
| Current Rating (A DC) | 0.86 |
| DWV | 1000, 200 |
| Tolerance | ±20% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Phenolic |
| Shielded | No |
| Operating Temperature | -55°C to +105°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded RF Coils
