Description
FIXED IND 120UH 840MA 320 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 4554-121J.
4554-121J has an inductance value of 120 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.
4554-121J is rated for 840 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
4554-121J lists a DC resistance of 320mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
4554-121J uses a package or case of Radial, Vertical Cylinder. Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 120 µH |
| Tolerance | ±5% |
| Current Rating | 840 mA |
| DC Resistance (DCR) | 320mOhm Max |
| Operating Temperature | -40°C ~ 85°C |
| Dimensions | 0.340" Dia (8.64mm) |
| Case / Size | Radial, Vertical Cylinder |
| Package / Case | Radial, Vertical Cylinder |
| Supplier | Delevan |
| Description | FIXED IND 120UH 840MA 320 MOHM |
| Series | 4554 |
| Product Status | Obsolete |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 20 @ 796kHz |
| Self Resonant Frequency | 3.4MHz |
| Inductance Test Frequency | 796 kHz |
| Mounting Type | Through Hole |
| Height - Seated (Max) | 0.433" (11.00mm) |
| Features | https://www.digikey.com/en/products/detail/delevan/4554-121J/4199853 |