Description
FIXED IND 3.9UH 900MA 155 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 1840R-20G.
1840R-20G 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.
1840R-20G is rated for 900 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
1840R-20G lists a DC resistance of 155mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
1840R-20G 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 | ±2% |
| Current Rating | 900 mA |
| DC Resistance (DCR) | 155mOhm Max |
| Operating Temperature | -55°C ~ 105°C |
| Dimensions | 0.187" Dia x 0.437" L (4.75mm x 11.10mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Delevan |
| Description | FIXED IND 3.9UH 900MA 155 MOHM |
| Series | 1840R |
| Product Status | Active |
| Type / Construction | Molded |
| Core Material | Iron |
| Shielding | Unshielded |
| Q @ Frequency | 35 @ 7.9MHz |
| Self Resonant Frequency | 65MHz |
| Inductance Test Frequency | 7.9 MHz |
| Mounting Type | Through Hole |
| Features | https://www.digikey.com/en/products/detail/delevan/1840R-20G/4180261 |
