Description
FIXED IND 3.3UH 945MA 140 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for ER1840-18KR.
ER1840-18KR has an inductance value of 3.3 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.
ER1840-18KR is rated for 945 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
ER1840-18KR lists a DC resistance of 140mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
ER1840-18KR 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 | 3.3 µH |
| Tolerance | ±10% |
| Current Rating | 945 mA |
| DC Resistance (DCR) | 140mOhm 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 3.3UH 945MA 140 MOHM |
| Series | Military, MIL-PRF-39010/05, ER1840 |
| Product Status | Active |
| Core Material | Iron |
| Shielding | Unshielded |
| Q @ Frequency | 30 @ 7.9MHz |
| Self Resonant Frequency | 70MHz |
| Inductance Test Frequency | 7.9 MHz |
| Mounting Type | Through Hole |
| Features | https://www.digikey.com/en/products/detail/delevan/ER1840-18KR/3479992 |