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| Part Number | RM4/I-3C90-A40 |
| Description | RM CORES 2PC SET |
| Manufacturer | Ferroxcube |
| Series | * |
| Part Status | Active |
| Core Type | RM |
| Inductance Factor (Al) | 40nH |
| Tolerance | ±3% |
| Gap | 3C90 |
| Effective Permeability (µe) | - |
| Initial Permeability (µi) | RM 4 |
| Material | Gapped |
| Core Factor (ΣI/A) mm1 | 54 |
| Effective Length (le) mm | - |
| Effective Area (Ae) mm² | 1.69 |
| Minimum Core Cross Section (Amin) mm² | 23.3 |
| Effective Magnetic Volume (Ve) mm³ | 13.8 |
| Finish | 11.5 |
| Supplier Device Package | 322 |
| Height | Uncoated |
| Length | 10.40mm |
| Width | 11.00mm |
| Diameter | 9.80mm |