EFD Cores - Fair-Rite Products Corp.

EFD10, EFD12, EFD15, EFD20, EFD25, EFD30
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.
•
AL value is measured at 1 kHz, B < 10 gauss.
•
Weight indicated is per pair or set.
Legend: Symbols & Definition
Explanation of part numbers: Digits 1 & 2 = product class, 3 & 4 = material grade.
Dimensions
Row
#
Part Number
Generic
Size
A
B
C
D
E
F
K
Wt. (g)
per
Set
(1)
8978101021
8998101021
8995101021
8978121221
8998121221
8995121221
8978151521
8998151521
8995151521
8978202021
8998202021
8995202021
8978252521
8998252521
8995252521
8978303021
8998303021
8995303021
EFD10
10.50 ± 0.3
0.413
5.20 ± 0.15
0.205
2.70 ± 0.2
0.106
3.75 ± 0.15
0.148
7.65 ± 0.3
0.301
4.55 ± 0.2
0.179
1.45 ± 0.1
0.057
0.90
EFD12
12.50 ± 0.35
0.492
6.20 ± 0.15
0.244
3.50 ± 0.2
0.138
4.55 ± 0.15
0.179
9.00 ± 0.35
0.354
5.40 ± 0.2
0.213
2.00 ± 0.1
0.079
1.80
EFD15
15.00 ± 0.4
0.591
7.50 ± 0.15
0.295
4.65 ± 0.2
0.183
5.50 ± 0.15
0.217
11.00 ± 0.4
0.433
5.30 ± 0.2
0.209
2.40 ± 0.1
0.094
2.80
EFD20
20.00 ± 0.55
0.787
10.00 ± 0.25
0.394
6.65 ± 0.2
0.262
7.70 ± 0.25
0.303
15.40 ± 0.5
0.606
8.90 ± 0.3
0.350
3.60 ± 0.15
0.142
7.00
EFD25
25.00 ± 0.5
0.984
12.50 ± 0.25
0.492
9.10 ± 0.3
0.358
9.30 ± 0.25
0.366
18.70 ± 0.6
0.736
11.40 ± 0.2
0.449
5.20 ± 0.2
0.205
16.00
EFD30
30.00 ± 0.8
1.181
15.00 ± 0.25
0.591
9.10 ± 0.3
0.358
11.20 ± 0.3
0.441
22.40 ± 0.75
0.882
14.60 ± 0.3
0.575
4.90 ± 0.2
0.193
24.00
(2)
(3)
(4)
(5)
(6)
Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288
122
Phone:
(888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 •
(888) 324-7748
(888) 337-7483
E
Web: www.fair-rite.com
-mail: [email protected]
Magnetic Core Parameters
Table Continued ...
Row
#
Part Number
∑l /A(cm-1)
l (cm)
Ae(cm2)
Ve(cm3)
A min(cm2)
AL(nH)
(1)
8978101021
8998101021
8995101021
8978121221
8998121221
8995121221
8978151521
8998151521
8995151521
8978202021
8998202021
8995202021
8978252521
8998252521
8995252521
8978303021
8998303021
8995303021
32.70
2.36
0.072
0.171
0.066
530 ±25%
540 ±25%
610 ±25%
25.90
2.84
0.11
0.311
0.108
710 ±25%
730 ±25%
850 ±25%
22.30
3.44
0.154
0.531
0.127
880 ±25%
910 ±25%
1050 ±25%
15.60
4.74
0.31
1.44
0.29
1200 ±25%
1200 ±25%
1400 ±25%
10.40
5.88
0.58
3.32
0.55
2200 ±25%
2250 ±25%
2650 ±25%
11.30
6.93
0.69
4.26
0.66
2800 ±25%
2150 ±25%
2800 ±25%
(2)
(3)
(4)
(5)
(6)
e
Fair-Rite Products Corp. PO Box 288, One Commercial Row, Wallkill, NY 12589-0288
Phone:
(888) FAIR RITE / (845) 895-2055 • Fax: (888) FERRITE / (845) 895-2629 •
(888) 324-7748
(888) 337-7483
E
Web: www.fair-rite.com
-mail: [email protected]ite.com
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