Description
FIXED IND 3.9UH 1.32A 140 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 7440450039.
7440450039 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.
7440450039 is rated for 1.32 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
7440450039 lists a DC resistance of 140mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
7440450039 uses a package or case of 1812 (4532 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 | ±20% |
| Current Rating | 1.32 A |
| DC Resistance (DCR) | 140mOhm Max |
| Saturation Current | 2.5A |
| Operating Temperature | -40°C ~ 125°C |
| Dimensions | 0.177" L x 0.126" W (4.50mm x 3.20mm) |
| Case / Size | 1812 (4532 Metric) |
| Package / Case | 1812 (4532 Metric) |
| Supplier | Würth Elektronik |
| Description | FIXED IND 3.9UH 1.32A 140 MOHM |
| Series | WE-LQ |
| Product Status | Active |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Q @ Frequency | 40 @ 1MHz |
| Self Resonant Frequency | 54MHz |
| Inductance Test Frequency | 1 MHz |
| Mounting Type | Surface Mount |
| Supplier Device Package | 1812 |
| Height - Seated (Max) | 0.114" (2.90mm) |
