Description
FIXED IND 3.9UH 880 MOHM SMD
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for CWF2012A-3R9K.
CWF2012A-3R9K 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.
CWF2012A-3R9K is rated for 372 mA Max. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
CWF2012A-3R9K lists a DC resistance of 880mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
CWF2012A-3R9K uses a package or case of 0805 (2012 Metric). 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 | ±10% |
| Current Rating | 372 mA Max |
| DC Resistance (DCR) | 880mOhm Max |
| Saturation Current | 372mA |
| Operating Temperature | -55°C ~ 125°C |
| Dimensions | 0.094" L x 0.063" W (2.40mm x 1.60mm) |
| Case / Size | 0805 (2012 Metric) |
| Package / Case | 0805 (2012 Metric) |
| Supplier | Bourns Inc. |
| Description | FIXED IND 3.9UH 880 MOHM SMD |
| Series | CWF2012A |
| Product Status | Active |
| Type / Construction | Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 10 @ 7.96MHz |
| Self Resonant Frequency | 57MHz |
| Ratings | AEC-Q200 |
| Inductance Test Frequency | 7.96 MHz |
| Mounting Type | Surface Mount |
| Supplier Device Package | 0805 |
| Height - Seated (Max) | 0.055" (1.40mm) |
