Part Number: 8998252521
98 EFD CORE SET
EFD (Economical Flat Design) cores have been designed to maximize volume in a low profile geometry. EFD cores allow maximum throughput power density with reasonably low mass for board level installation.
EFD cores can be supplied with the center post gapped to a mechanical dimension or an ALvalue.
Weight indicated is per pair or set.
Weight: 16 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 25 | ± 0.50 | 0.984 | _ |
B | 12.5 | ± 0.25 | 0.492 | _ |
C | 9.1 | ± 0.30 | 0.358 | _ |
D | 9.3 | ± 0.25 | 0.366 | _ |
E | 18.7 | ± 0.60 | 0.736 | _ |
F | 11.4 | ± 0.20 | 0.449 | _ |
K | 5.2 | ± 0.20 | 0.205 | _ |
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) | 2250 ±25% |
Ae(cm2) | 0.58 |
Σl/A(cm-1) | 10.4 |
le(cm) | 5.88 |
Ve(cm3) | 3.32 |
Amin(cm2) | 0.55 |
AL value is measured at 1 kHz, B < 10 gauss.