Part Number: 9598261802
98 EER CORE SET
EER cores, similar to ETD cores, have been designed to make optimum use of a given volume of ferrite material for maximum throughput power. The structure, which includes a round center post, approaches a nearly uniform cross-sectional area throughout the core and provides a winding area that minimizes winding losses.
EER cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicated is per pair or set.
Weight: 11.2 (g)
Chart Legend
•Dimensions (Top numbers are in millimeters, bottom numbers are in nominal inches.).
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 25.5 | ± 0.50 | 1.004 | _ |
| B | 9.3 | ± 0.15 | 0.366 | _ |
| C | 7.5 | ± 0.25 | 0.295 | _ |
| D | 6.4 | ± 0.15 | 0.252 | _ |
| E | 19.8 | min | 0.78 | min |
| F | 7.5 | ± 0.25 | 0.295 | _ |
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) | 1800 ±25% |
| Ae(cm²) | 0.434 |
| Σl/A(cm⁻¹) | 11.1 |
| le(cm) | 4.8 |
| Ve(cm³) | 2.083 |
| Amin(cm²) | 0.425 |
AL value is measured at 1 kHz, B < 10 gauss.