Gowanda’s 21M471MLF is a high-quality, reliable molded unshielded RF coil designed for various electronic applications. This component, part of the 21M series, features a compact design with dimensions of 14.224 × 5.588 × 5.588 mm and a weight of 1.7 g. It is suitable for through-hole technology (THT) mounting and is classified under the Commercial Off-The-Shelf (COTS) application grade. The coil offers an inductance of 4.7 µH with a minimum Q factor of 40, tested at a frequency of 7.9 MHz. It has a direct current resistance (DCR) of 1.8 Ω and a self-resonant frequency (SRF) of 90 MHz, with a current rating of 0.36 A DC. The dielectric withstand voltage (DWV) is rated at 1000, 200, and it maintains a tolerance of ±20%. The termination type is RoHS compliant with a Sn/Cu finish, and the core material is phenolic. Operating efficiently in temperatures ranging from -55°C to +125°C, this component is fungal inert and comes in tape and reel (T&R) packaging, with a moisture sensitivity level (MSL) of 1.
| Weight | 1.7 g |
|---|---|
| Dimensions | 14.224 × 5.588 × 5.588 mm |
| Series | 21M |
| Mounting Type | THT |
| Application Grade | COTS |
| Inductance (µH) | 4.7 |
| Q MIN | 40 |
| Test Freq (MHz) | 7.9 |
| DCR (Ω) | 1.8 |
| SRF (MHz) | 90 |
| Current Rating (A DC) | 0.36 |
| DWV | 1000, 200 |
| Tolerance | ±20% |
| Termination Type | RoHS |
| Termination Finish | Sn/Cu |
| Core | Phenolic |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded RF Coils
