Description
FIXED IND 820UH 350MA 1.8 OHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 4554-821J.
4554-821J has an inductance value of 820 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.
4554-821J is rated for 350 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
4554-821J lists a DC resistance of 1.8Ohm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
4554-821J 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 | 820 µH |
| Tolerance | ±5% |
| Current Rating | 350 mA |
| DC Resistance (DCR) | 1.8Ohm 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 820UH 350MA 1.8 OHM TH |
| Series | 4554 |
| Product Status | Obsolete |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 20 @ 796kHz |
| Self Resonant Frequency | 1.5MHz |
| 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/4554-821J/4199869 |