Gowanda’s 28M181J is a high-quality molded unshielded RF coil, designed for reliable performance in various electronic applications. Weighing 2.65 grams and measuring 22.86 × 7.137 × 7.137 mm, this component is part of the 28M series and features a through-hole technology (THT) mounting type. It is suitable for commercial off-the-shelf (COTS) applications, offering an inductance of 1.8 µH with a Q minimum of 60 at a test frequency of 7.9 MHz. The coil has a direct current resistance (DCR) of 0.135 ohms and a self-resonant frequency (SRF) of 140 MHz, with a current rating of 1.75 A DC. It is designed to withstand dielectric withstanding voltages (DWV) of 1000 and 200, with a tolerance of ±5%. The termination type is lead-based with a Sn63Pb37 finish, and the core is made of phenolic material. Operating efficiently in temperatures ranging from -55°C to +105°C, this component is rated at moisture sensitivity level (MSL) 1 and is packaged in tape and reel (T&R) format. 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) | 1.8 |
| Q MIN | 60 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.135 |
| SRF (MHz) | 140 |
| Current Rating (A DC) | 1.75 |
| DWV | 1000, 200 |
| Tolerance | ±5% |
| 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
