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| PartNumber | B65813JR87 | B65813JR41 | B65813JR49 |
| Description | EMI/RFI Suppressors & Ferrites Ferrite Cores & Accessories RM10 N87 | Ferrite Core RM Core 28.5mm 18.7mm Transformer Applications (Alt: B65813J0000R041) | Ferrite Core RM Core 28.5mm 18.7mm Transformer Applications (Alt: B65813J0000R049) |
| Manufacturer | EPCOS (TDK) | - | - |
| Product Category | Ferrite Cores | - | - |
| Material | N87 | - | - |
| Series | B65813 | - | - |
| Product | Ferrite Cores | - | - |
| Type | Ungapped | - | - |
| Packaging | Blister Card | - | - |
| Height | 9.35mm | - | - |
| Length | 28.50mm | - | - |
| Width | 13.50mm | - | - |
| Supplier Device Package | RM 10 | - | - |
| Tolerance | -20%, +30% | - | - |
| Core Type | RM | - | - |
| Core Size | RM 10 | - | - |
| Diameter | - | - | - |
| Inductance | 4200 nH | - | - |
| Inductance Factor Al | 4.2μH | - | - |
| Gap | Ungapped | - | - |
| Effective Permeability μe | 1500 | - | - |
| Initial Permeability μi | 2200 | - | - |
| Core Factor ΣI A mm 1 | 0.45 | - | - |
| Effective Length le mm | 44 | - | - |
| Effective Area Ae mm2 | 98 | - | - |
| Minimum Core Cross Section Amin mm2 | 90 | - | - |
| Effective Magnetic Volume Ve mm3 | 4310 | - | - |
| Finish | Uncoated | - | - |
| Core | RM Core | - | - |
| Part # Aliases | B65813J0000R087 | - | - |
| Core Material | N87 | - | - |
| Outside Length | 28.5 mm | - | - |
| Outside Width | 18.7 mm | - | - |