Gowanda’s ER18M391JR is a high-quality, reliable electronic component designed for demanding applications. This M39010 Level-R molded unshielded inductor is part of the ER18M series and features a compact design with dimensions of 10.34 × 3.99 × 3.99 mm and a weight of 0.85 g. It is suitable for through-hole technology (THT) mounting and meets QPL application grade standards. With an inductance of 3.9 µH, a direct current resistance (DCR) of 0.155 Ω, and a current rating of 870 A DC, it is engineered for robust performance. The inductor operates effectively within a frequency range, with a self-resonant frequency (SRF) of 65 MHz and a test frequency of 7.9 MHz, ensuring a minimum Q factor of 30. It is built to withstand dielectric withstanding voltages (DWV) of 1000 and 200, with a tolerance of ±5%. The product is classified as Level R, Class 1, and features a lead (Pb) termination type with a Sn63Pb37 finish. Constructed with a powdered iron core, it is designed to operate in temperatures ranging from -55°C to +105°C, with a moisture sensitivity level (MSL) of 1. The inductor is packaged in tape and reel (T&R) format, although it is not fungal inert.
| Weight | 0.85 g |
|---|---|
| Dimensions | 10.34 × 3.99 × 3.99 mm |
| Series | ER18M |
| Mounting Type | THT |
| Application Grade | QPL |
| Inductance (µH) | 3.9 |
| DCR (Ω) | 0.155 |
| Current Rating (A DC) | 870 |
| SRF (MHz) | 65 |
| Test Freq (MHz) | 7.9 |
| Q MIN | 30 |
| DWV | 1000, 200 |
| Tolerance | ±5% |
| Product Level | R |
| Class | 1 |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Powdered Iron |
| Shielded | No |
| Operating Temperature | -55°C to +105°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | No |
M39010 Level-R Molded Unshielded Inductor
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