Description
FIXED IND 3.9UH 450MA 400 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for ER1641-392KS.
ER1641-392KS 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.
ER1641-392KS is rated for 450 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
ER1641-392KS lists a DC resistance of 400mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
ER1641-392KS 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 | 3.9 µH |
| Tolerance | ±10% |
| Current Rating | 450 mA |
| DC Resistance (DCR) | 400mOhm Max |
| Operating Temperature | -55°C ~ 105°C |
| Dimensions | 0.162" Dia x 0.410" L (4.11mm x 10.41mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Delevan |
| Description | FIXED IND 3.9UH 450MA 400 MOHM |
| Series | Military, MIL-PRF-39010/02, ER1641 |
| Product Status | Active |
| Core Material | Iron |
| Shielding | Unshielded |
| Q @ Frequency | 44 @ 7.9MHz |
| Self Resonant Frequency | 75MHz |
| Inductance Test Frequency | 7.9 MHz |
| Mounting Type | Through Hole |
| Features | https://www.digikey.com/en/products/detail/delevan/ER1641-392KS/3479612 |