Description
FIXED IND 75UH 3.9A 45 MOHM TH
Specifications
Parameter Guide
Understand the key electrical and mechanical specifications for PTKM75-121.
PTKM75-121 has an inductance value of 75 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.
PTKM75-121 is rated for 3.9 A. Current rating helps determine whether the part can carry the expected DC or RMS current without excessive heating or saturation risk.
PTKM75-121 lists a DC resistance of 45mOhm Max. Lower DCR usually reduces conduction loss and improves efficiency in power circuits.
PTKM75-121 uses a package or case of Radial, Vertical (Open). Package size affects PCB footprint, height clearance, thermal behavior, and compatibility with automated assembly.
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Product Attributes
| Inductance | 75 µH |
| Tolerance | ±10% |
| Current Rating | 3.9 A |
| DC Resistance (DCR) | 45mOhm Max |
| Saturation Current | 1.8A |
| Dimensions | 0.820" Dia x 0.400" W (20.83mm x 10.16mm) |
| Case / Size | Radial, Vertical (Open) |
| Package / Case | Radial, Vertical (Open) |
| Supplier | Delevan |
| Description | FIXED IND 75UH 3.9A 45 MOHM TH |
| Series | PTKM |
| Product Status | Active |
| Type / Construction | Toroidal |
| Core Material | Ferrite |
| Shielding | Shielded |
| Self Resonant Frequency | 3MHz |
| Inductance Test Frequency | 1 kHz |
| Mounting Type | Through Hole |
| Features | https://www.digikey.com/en/products/detail/delevan/PTKM75-121/4199580 |