Gowanda’s SM3-391M is a molded unshielded temperature stable inductor, designed for high reliability in electronic applications. Weighing just 0.05 grams, it features compact dimensions of 2.98 × 2.29 × 2.18 mm, making it suitable for space-constrained environments. Part of the SM3 series, this surface-mount technology (SMT) component is graded COTS+ for commercial off-the-shelf applications. It offers an inductance of 3.9 µH, a direct current resistance (DCR) of 1.5 Ω, and a current rating of 0.372 A DC. With a self-resonant frequency (SRF) of 47 MHz and tested at 4 MHz, it maintains a tolerance of ±20%. The inductor uses a powdered iron core and features lead-based (Pb) terminations with a Sn63Pb37 finish. It operates effectively within a temperature range of -55°C to +125°C and is rated at moisture sensitivity level (MSL) 1. Packaged in tape and reel (T&R) format, the SM3-391M is also fungal inert, ensuring durability and reliability in various environments.
| Weight | 0.05 g |
|---|---|
| Dimensions | 2.98 × 2.29 × 2.18 mm |
| Series | SM3 |
| Mounting Type | SMT |
| Application Grade | COTS+ |
| Inductance (µH) | 3.9 |
| DCR (Ω) | 1.5 |
| Current Rating (A DC) | 0.372 |
| SRF (MHz) | 47 |
| Test Freq (MHz) | 4 |
| Tolerance | ±20% |
| Termination Type | Pb |
| Termination Finish | Sn63Pb37 |
| Core | Powdered Iron |
| Shielded | No |
| Operating Temperature | -55°C to +125°C |
| MSL | 1 |
| Packaging | T&R |
| Fungal Inert | Yes |
Molded Unshielded Temperature Stable Inductor
