Surface mount fixed inductor featuring 3.9µH inductance with a 20% tolerance, designed for 1MHz operation. This unshielded wirewound power choke utilizes a ferrite core and offers a 1.32A current rating with a 2.5A saturation current. It exhibits a DC resistance of 140mΩ and a Q factor of 40 at 1MHz. Packaged in an 1812 (4532 metric) case, it operates within a temperature range of -40°C to 125°C and is supplied on tape and reel.
Package1812
Current Rating1.32A
MountingSurface Mount
Inductance3.9uH
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Technical Specifications
Wurth Electronics 7440450039 technical specifications.
General
| Case Code (Imperial) | 1812 |
| Case Code (Metric) | 4532 |
| Package/Case | 1812 |
| Core Material | Ferrite |
| Current Rating | 1.32A |
| DC Resistance (DCR) | 140mR |
| Height | 2.6mm |
| Height - Seated (Max) | 0.114inch |
| Inductance | 3.9uH |
| Inductance Tolerance | 20% |
| Length | 0.177inch |
| Max DC Current | 1.32A |
| Max Operating Temperature | 125°C |
| Min Operating Temperature | -40°C |
| Mount | Surface Mount |
| Package Quantity | 1 |
| Packaging | Tape and Reel |
| Q Factor | 40 |
| Reach SVHC Compliant | Unknown |
| RMS Current (Irms) | 1.32A |
| RoHS Compliant | Yes |
| Saturation Current | 2.5A |
| Self Resonant Frequency | 54MHz |
| Series | WE-LQ |
| Shielding | Unshielded |
| Termination | SMD/SMT |
| Test Frequency | 1MHz |
| Tolerance | 20% |
| Width | 3.2mm |
Compliance
| RoHS | Compliant |
Datasheet
Wurth Electronics 7440450039 Datasheet
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