ETD Cores (9598394002)
Part Number: 9598394002
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 A
L
value.
Weight indicated is per pair or set.
Weight: 60 (g)
Chart Legend
Σl/ A : Core Constant, l
e
: Effective Path
Length, A
e
: Effective Cross- Sectional Area, V
e
:
Effective Core Volume
A
L
: Inductance Factor
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.
Electrical Properties
A
L
(nH) 3000 ±25%
Ae(cm
2
) 1.28
Σl/ A(cm
-1
) 7.2
l
e
(cm) 9.24
V
e
(cm
3
) 11.85
A
min
(cm
2
) 1.267
A
L
value is measured at 1 kHz, B < 10 gauss
Fair- Rite Products Corp. • One Commercial Row, Wallkill, New York 12589-0288
888-324-7748 • 845-895-2055 • Fax: 845-895-2629 • ferrites@fair- rite.com • www.fair- rite.com
Dim mm mm tol nominal inch inch misc.
A 39.1 ± 0.70 1.539 _
B 19.8 ± 0.20 0.78 _
C 12.7 ± 0.35 0.5 _
D 14.6 ± 0.20 0.575 _
E 29.3 min 1.154 min
F 12.7 ± 0.35 0.5 _
