Description
FIXED IND 39UH 21A 12 MOHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 1140-390K.
1140-390K 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.
1140-390K is rated for 21 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
1140-390K lists a DC resistance of 12mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
1140-390K uses a package or case of Radial, Vertical Cylinder. 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 | 21 A |
| DC Resistance (DCR) | 12mOhm Max |
| Operating Temperature | -55°C ~ 105°C |
| Dimensions | 1.500" Dia (38.10mm) |
| Case / Size | Radial, Vertical Cylinder |
| Package / Case | Radial, Vertical Cylinder |
| Supplier | Bourns Inc. |
| Description | FIXED IND 39UH 21A 12 MOHM TH |
| Series | 1140 |
| Product Status | Obsolete |
| Type / Construction | Drum Core, Wirewound |
| Core Material | Ferrite |
| Shielding | Unshielded |
| Inductance Test Frequency | 1 kHz |
| Mounting Type | Through Hole |
| Height - Seated (Max) | 1.030" (26.16mm) |
