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| PartNumber | B66423U0250K187 | B66423U0315K187 | B66423U0160K187 |
| Description | Ferrite Cores & Accessories EFD30/15/9 N87AL 250NH +/-10% | Ferrite Cores & Accessories EFD30/15/9 N87AL 315NH+/-10% | Ferrite Cores & Accessories EFD30/15/9-N87-A160 |
| Manufacturer | EPCOS / TDK | EPCOS / TDK | - |
| Product Category | Ferrite Cores & Accessories | Ferrite Cores & Accessories | - |
| RoHS | Y | Y | - |
| Series | B66423U | B66423U | - |
| Product | Ferrite Cores | Ferrite Cores | - |
| Type | Gapped | Gapped | - |
| Core | EFD Core | EFD Core | - |
| Core Size | 30 x 15 x 9 | 30 x 15 x 9 | - |
| Inductance | 250 nH | 315 nH | - |
| Tolerance | 10 % | 10 % | - |
| Accessory Type | - | - | - |
| Number of Pins | - | - | - |
| Core Material | N87 | N87 | - |
| Termination Style | - | - | - |
| Packaging | Bulk | Bulk | - |
| Impedance | - | - | - |
| Inside Diameter | - | - | - |
| Maximum DC Current | - | - | - |
| Maximum DC Resistance | - | - | - |
| Outside Diameter | - | - | - |
| Outside Height | 15 mm | 15 mm | - |
| Outside Width | 9.1 mm | 9.1 mm | - |
| Brand | EPCOS / TDK | EPCOS / TDK | - |
| Inside Height | 11.2 mm | 9.1 mm | - |
| Inside Length | 22.4 mm | 22.4 mm | - |
| Inside Width | 14.6 mm | 14.6 mm | - |
| Lead Diameter | - | - | - |
| Lead Spacing | - | - | - |
| Outside Length | 30 mm | 30 mm | - |
| Product Type | Ferrite Cores & Accessories | Ferrite Cores & Accessories | - |
| Factory Pack Quantity | 300 | 300 | - |
| Subcategory | Ferrites | Ferrites | - |
| Part # Aliases | 250K187 B66423U B66423U250K187 | 315K187 B66423U B66423U315K187 | - |
| Unit Weight | 0.846575 oz | 0.176370 oz | - |