Description
FIXED IND 39UH 3.2A 78 MOHM SMD
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 74457139.
74457139 has an inductance value of 39 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.
74457139 is rated for 3.2 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
74457139 lists a DC resistance of 78mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
74457139 uses a package or case of Nonstandard. Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 39 µH |
| Tolerance | ±10% |
| Current Rating | 3.2 A |
| DC Resistance (DCR) | 78mOhm Max |
| Saturation Current | 5.2A |
| Operating Temperature | -40°C ~ 125°C |
| Dimensions | 0.866" L x 0.591" W (22.00mm x 15.00mm) |
| Case / Size | Nonstandard |
| Package / Case | Nonstandard |
| Supplier | Würth Elektronik |
| Description | FIXED IND 39UH 3.2A 78 MOHM SMD |
| Series | WE-PD4 |
| Product Status | Active |
| Type / Construction | Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Self Resonant Frequency | 10.5MHz |
| Inductance Test Frequency | 100 kHz |
| Mounting Type | Surface Mount |
| Height - Seated (Max) | 0.307" (7.80mm) |
