Description
FIXED IND 39UH 185MA 1.7 OHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 78F390J.
78F390J has an inductance value of 39 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.
78F390J is rated for 185 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
78F390J lists a DC resistance of 1.7Ohm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
78F390J uses a package or case of Axial. Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 39 µH |
| Tolerance | ±5% |
| Current Rating | 185 mA |
| DC Resistance (DCR) | 1.7Ohm Max |
| Saturation Current | - |
| Operating Temperature | -55°C ~ 105°C |
| Dimensions | 0.110" Dia x 0.280" L (2.79mm x 7.11mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Bourns Inc. |
| Description | FIXED IND 39UH 185MA 1.7 OHM TH |
| Series | 78F |
| Product Status | Obsolete |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 50 @ 2.5MHz |
| Self Resonant Frequency | 9.5MHz |
| Ratings | - |
| Inductance Test Frequency | 2.5 MHz |
| Mounting Type | Through Hole |
| Supplier Device Package | - |
| Height - Seated (Max) | - |
| Features | - |
