ETD Cores (9598494902)
Part Number: 9598494902
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: 124 (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) 4000 ±25%
Ae(cm
2
) 2.135
Σl/ A(cm
-1
) 5.3
l
e
(cm) 11.44
V
e
(cm
3
) 24.42
A
min
(cm
2
) 2.09
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 49 ± 0.80 1.929 _
B 24.7 ± 0.20 0.972 _
C 16.3 ± 0.40 0.642 _
D 18.1 ± 0.20 0.713 _
E 36.1 min 1.421 min
F 16.3 ± 0.40 0.642 _
