Gowanda’s 28M391M 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. Part of the 28M series, they feature a Through-Hole Technology (THT) mounting type and are suitable for Commercial Off-The-Shelf (COTS) applications. With an inductance of 3.9 µH and a minimum Q factor of 60, these coils operate at a test frequency of 7.9 MHz. They have a Direct Current Resistance (DCR) of 0.45 Ω and a Self-Resonant Frequency (SRF) of 95 MHz, supporting a current rating of 0.995 A DC. The dielectric withstand voltage (DWV) is rated at 1000, 200, with a tolerance of ±20%. The coils feature a lead-based termination type with a Sn63Pb37 finish and a phenolic core. They are not shielded and can operate in temperatures ranging from -55°C to +105°C. With a Moisture Sensitivity Level (MSL) of 1, these components are packaged in tape and reel (T&R) and are fungal inert.
| Weight | 2.65 g |
|---|---|
| Dimensions | 22.86 × 7.137 × 7.137 mm |
| Series | 28M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 3.9 |
| Q MIN | 60 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.45 |
| SRF (MHz) | 95 |
| Current Rating (A DC) | 0.995 |
| 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
