EFD Cores (8995202021)
Part Number: 8995202021
95 EFD CORE CORE
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 A
L
value.
Weight indicated is per pair or set.
Weight: 7 (g)
Dim mm
A
20
B
10
C
6.65
D
7.7
E
15.4
F
8.9
K
3.6
mm tol
± 0.55
± 0.25
± 0.20
± 0.25
± 0.50
± 0.30
± 0.15
nominal inch
0.787
0.394
0.262
0.303
0.606
0.35
0.142
inch misc.
_
_
_
_
_
_
_
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)
1400 ±25%
2
Ae(cm ) 0.31
-1
Σl/ A(cm ) 15.6
l
e
(cm)
4.74
3
V
e
(cm )
1.44
2
A
min
(cm ) 0.29
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