2744040447 Fair-Rite, 2744040447 Datasheet - Page 150

• Manufacturer Part Number: 2744040447
• Description: 44 SM Ferrite Beads, T&R
• Manufacturer: Fair-Rite

150
Fair-Rite Products Corp.
Phone: (888) FAIR RITE / [phone]
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. Their 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.
• Part number is for a single core.
• ETD cores can be supplied with the center post gapped to a mechanical dimension.
• ETD cores can also be gapped to an A
• A
• See section “The Effect of Direct Current on the Inductance of a Ferrite Core” on page 165 for curves of A
• The ETD cores are in conformance with IEC 61185.
• For any ETD core requirement not listed in the catalog, please contact our customer service group for
Dimensions
ETD Cores
* Bold part numbers designate preferred parts.
availability and pricing.
Part Number *
9577340002
9578340002
9577390002
9578390002
9577440002
9578440002
9577490002
9578490002
L
9578290002
value is measured at 1kHz, <10 gauss.
[phone]
(Bold numbers are in millimeters, light numbers are nominal in inches.)
34.2±0.8
39.1±0.9
29.8±0.8
34.2±0.8
44.0±1.0
48.7±1.1
39.1±0.9
44.0±1.0
48.7±1.1
1.173
1.346
1.346
1.539
1.732
1.917
1.732
1.539
1.917
A
15.8±0.2
17.3±0.2
17.3±0.2
19.8±0.2
22.3±0.2
24.7±0.2
19.8±0.2
22.3±0.2
24.7±0.2
.622
.681
.681
.780
.878
.972
.878
.780
.972
B
L
value. These cores will be supplied as sets.
• FAX: (888) FERRITE / [phone] • www.fair-rite.com • E-Mail: [e-mail]
10.8±0.3
10.8±0.3
12.5±0.3
14.8±0.4
16.3±0.4
12.5±0.3
14.8±0.4
16.3±0.4
9.5±0.3
.374
.425
.425
.492
.583
.642
.583
C
.492
.642
[phone]
12.1±0.3
14.6±0.4
11.0±0.3
12.1±0.3
16.5±0.4
18.1±0.4
14.6±0.4
16.5±0.4
18.1±0.4
.433
.476
.476
.575
.650
.713
.575
.650
.713
D
P.O. Box J,One Commercial Row, Wallkill, NY 12589-0288
Note: (914) Area Code has changed to (845).
26.3±0.7
30.1±0.8
22.7±0.7
26.3±0.7
33.3±0.8
37.0±0.9
30.1±0.8
33.3±0.8
37.0±0.9
1.035
1.035
1.185
1.311
1.457
1.311
1.185
1.457
.894
E
10.8±0.3
12.5±0.3
10.8±0.3
14.8±0.4
16.3±0.4
12.5±0.3
14.8±0.4
16.3±0.4
9.5±0.3
.374
.425
.425
F
.492
.583
.642
.583
.492
.642
Wt (g)
14
22
22
32
32
52
52
65
65
L
vs. gap length.
14th Edition