Description
FIXED IND 3.9UH 378MA 1.3 OHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for SMRF1210-391K.
SMRF1210-391K has an inductance value of 3.9 µH. This value indicates how much magnetic energy the component can store and is one of the first parameters to compare when selecting an inductor.
SMRF1210-391K is rated for 378 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
SMRF1210-391K lists a DC resistance of 1.3Ohm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
SMRF1210-391K uses a package or case of 1210 (3225 Metric). Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 3.9 µH |
| Tolerance | ±10% |
| Current Rating | 378 mA |
| DC Resistance (DCR) | 1.3Ohm Max |
| Operating Temperature | -55°C ~ 125°C |
| Dimensions | 0.130" L x 0.095" W (3.30mm x 2.42mm) |
| Case / Size | 1210 (3225 Metric) |
| Package / Case | 1210 (3225 Metric) |
| Supplier | Gowanda |
| Description | FIXED IND 3.9UH 378MA 1.3 OHM |
| Series | SMRF1210S |
| Product Status | Active |
| Type / Construction | Molded |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 30 @ 7.9MHz |
| Self Resonant Frequency | 50MHz |
| Inductance Test Frequency | 7.9 MHz |
| Mounting Type | Surface Mount |
| Supplier Device Package | 1210 |
| Height - Seated (Max) | 0.106" (2.70mm) |
