ETD Cores (9598293202)Part Number: 9598293202
98 ETD CORE SET
ETD cores have been designed to make optimum use of a given volume of ferrite material for maximum throughput power, specifically for forward converter transformers. 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. ETD cores are used mainly in switched-mode power supplies and permit off-line designs where IEC and VDE isolation requirements must be met.
ETD cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicated is per pair or set.
Weight: 28 (g)
| Dim | mm | mm tol | nominal inch | inch misc. |
| A | 29.8 | ± 0.60 | 1.173 | _ |
| B | 15.8 | ± 0.20 | 0.622 | _ |
| C | 9.5 | ± 0.30 | 0.374 | _ |
| D | 11 | ± 0.20 | 0.433 | _ |
| E | 22.00 | min | 0.867 | min |
| F | 9.5 | ± 0.30 | 0.374 | _ |
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) | 2200 ±25% |
| Ae(cm2) | 0.767 |
| Σl/A(cm-1) | 9.5 |
| le(cm) | 7.07 |
| Ve(cm3) | 5.418 |
| Amin(cm2) | 0.709 |
AL value is measured at 1 kHz, B < 10 gauss