Description
FIXED IND 680UH 91MA 27.2 OHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for 1638R-20F.
1638R-20F has an inductance value of 680 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.
1638R-20F is rated for 91 mA. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
1638R-20F lists a DC resistance of 27.2Ohm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
1638R-20F 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 | 680 µH |
| Tolerance | ±1% |
| Current Rating | 91 mA |
| DC Resistance (DCR) | 27.2Ohm Max |
| Operating Temperature | -55°C ~ 125°C |
| Dimensions | 0.156" Dia x 0.375" L (3.96mm x 9.53mm) |
| Case / Size | Axial |
| Package / Case | Axial |
| Supplier | Delevan |
| Description | FIXED IND 680UH 91MA 27.2 OHM TH |
| Series | 1638R |
| Product Status | Active |
| Type / Construction | Molded |
| Core Material | Iron |
| Shielding | Unshielded |
| Q @ Frequency | 65 @ 790kHz |
| Self Resonant Frequency | 3.1MHz |
| Inductance Test Frequency | 790 kHz |
| Mounting Type | Through Hole |
| Features | https://www.digikey.com/en/products/detail/delevan/1638R-20F/4179102 |