Description
FIXED IND 3.9UH 640MA 370 MOHM
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for LAL04SK3R9K.
LAL04SK3R9K 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.
LAL04SK3R9K is rated for 640 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
LAL04SK3R9K lists a DC resistance of 370mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
LAL04SK3R9K 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 | 3.9 µH |
| Tolerance | ±10% |
| Current Rating | 640 mA |
| DC Resistance (DCR) | 370mOhm Max |
| Operating Temperature | -25°C ~ 105°C |
| Dimensions | 0.157" Dia x 0.386" L (4.00mm x 9.80mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Taiyo Yuden |
| Description | FIXED IND 3.9UH 640MA 370 MOHM |
| Series | LA, L Type |
| Product Status | Obsolete |
| Shielding | Unshielded |
| Q @ Frequency | 65 @ 7.96MHz |
| Self Resonant Frequency | 65MHz |
| Inductance Test Frequency | 7.96 MHz |
| Mounting Type | Through Hole |
