Part Number: 8978151521
78 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: 2.8 (g)
Dim | mm | mm tol | nominal inch | inch misc. |
A | 15 | ± 0.40 | 0.591 | _ |
B | 7.5 | ± 0.15 | 0.295 | _ |
C | 4.65 | ± 0.20 | 0.183 | _ |
D | 5.5 | ± 0.15 | 0.217 | _ |
E | 11 | ± 0.40 | 0.433 | _ |
F | 5.3 | ± 0.20 | 0.209 | _ |
K | 2.4 | ± 0.10 | 0.094 | _ |
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) | 880 ±25% |
Ae(cm2) | 0.154 |
Σl/A(cm-1) | 22.3 |
le(cm) | 3.44 |
Ve(cm3) | 0.531 |
Amin(cm2) | 0.127 |
AL value is measured at 1 kHz, B < 10 gauss.