Description
FIXED IND 220UH 155MA 5.1 OHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 77F221J.
77F221J has an inductance value of 220 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.
77F221J is rated for 155 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
77F221J lists a DC resistance of 5.1Ohm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
77F221J 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 | 220 µH |
| Tolerance | ±5% |
| Current Rating | 155 mA |
| DC Resistance (DCR) | 5.1Ohm Max |
| Operating Temperature | -55°C ~ 105°C |
| Dimensions | 0.157" Dia x 0.410" L (3.99mm x 10.41mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Bourns Inc. |
| Description | FIXED IND 220UH 155MA 5.1 OHM TH |
| Series | 77F |
| Product Status | Obsolete |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 70 @ 796kHz |
| Self Resonant Frequency | 3MHz |
| Inductance Test Frequency | 796 kHz |
| Mounting Type | Through Hole |
