Gowanda’s 21M221J 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 a through-hole technology (THT) mounting type. It is classified as a Commercial Off-The-Shelf (COTS) application grade product, offering an inductance of 2.2 µH with a minimum Q factor of 40 at a test frequency of 7.9 MHz. The coil has a DC resistance of 0.5 ohms, a self-resonant frequency of 135 MHz, and a current rating of 0.68 A DC. It is designed to withstand dielectric withstanding voltages of 1000 and 200, with a tolerance of ±5%. The termination type is lead-based with a Sn63Pb37 finish, and it features a phenolic core. Operating efficiently in temperatures ranging from -55°C to +125°C, the component is rated at moisture sensitivity level 1 and is packaged in tape and reel format. 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) | 2.2 |
| Q MIN | 40 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 0.5 |
| SRF (MHz) | 135 |
| Current Rating (A DC) | 0.68 |
| DWV | 1000, 200 |
| Tolerance | ±5% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Phenolic |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded RF Coils
