Part Number: 6598130121
98 EP CORE SET
EP designs reduce the effect of residual air gap upon the effective permeability of the core, hence they minimize coil volume for a given inductance. EP cores also provide a high degree of isolation from adjacent components and are advantageously used in low power devices, matching and broadband transformers.
EP cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicates is per pair or set.
Weight: 2.35 (g)
Chart Legend
•Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches.).
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 12.5 | ± 0.30 | 0.492 | _ |
| B | 6.5 | ± 0.30 | 0.256 | _ |
| C | 8.8 | ± 0.20 | 0.346 | _ |
| D | 4.7 | ± 0.20 | 0.185 | _ |
| E | 10 | ± 0.30 | 0.394 | _ |
| F | 4.4 | ± 0.20 | 0.173 | _ |
| K | 2.50 | min | 0.098 | max |
Chart Legend
Σl/A : Core Constant, le : Effective Path Length, Ae : Effective Cross-Sectional Area, Ve : Effective Core Volume
AL : Inductance Factor 
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.
| Electrical Properties | |
| AL(nH) | 1650 ±25% |
| Ae(cm²) | 0.197 |
| Σl/A(cm⁻¹) | 11.8 |
| le(cm) | 2.32 |
| Ve(cm³) | 0.457 |
| Amin(cm²) | 0.148 |
AL value is measured at 1 kHz, B < 10 gauss