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| Part Number | B65857A0000R045 | 
| Datasheet | B65857A0000R045 datasheet | 
| Description | FERRITE CORE EPX 2.5UH N45 2PCS | 
| Manufacturer | EPCOS (TDK) | 
| Series | B65857A | 
| Part Status | Not For New Designs | 
| Core Type | EPX | 
| Inductance Factor (Al) | 2.5µH | 
| Tolerance | -20%, +30% | 
| Gap | N45 | 
| Effective Permeability (µe) | - | 
| Initial Permeability (µi) | EPX 7 x 9 | 
| Material | Ungapped | 
| Core Factor (ΣI/A) mm1 | 1820 | 
| Effective Length (le) mm | 3800 | 
| Effective Area (Ae) mm² | 0.91 | 
| Minimum Core Cross Section (Amin) mm² | 15.7 | 
| Effective Magnetic Volume (Ve) mm³ | 17.2 | 
| Finish | 13.9 | 
| Supplier Device Package | 270 | 
| Height | Uncoated | 
| Length | 3.75mm | 
| Width | 9.40mm | 
| Diameter | 9.00mm |