Ferroxcube
E cores and accessories
CORE SETS
Effective core parameters
SYMBOL
Σ(I/A)
V
e
I
e
A
e
A
min
m
PARAMETER
core factor (C1)
effective volume
effective length
effective area
minimum area
mass of core half
VALUE
0.239
52000
123
420
411
≈130
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
R
<
0.6
andbook, halfpage
E55/28/25
56.2 0
−2.1
37.5
+1.5
0
17.2
0
−0.5
+0.8
0
27.5
±0.3
18.5
R3
25 0
−0.8
CBW069
Dimensions in mm.
Fig.1 E55/28/25 core half.
Core halves
A
L
measured in combination with a non-gapped core half, clamping force for A
L
measurements 60
±20
N, unless stated
otherwise.
GRADE
3C90
A
L
(nH)
100
±5%
(1)
160
±5%
(1)
250
±5%
(1)
315
±5%
(1)
400
±8%
(1)
630
±10%
(1)
8000
±25%
3C92
3C94
3C95
3F3
5800
±25%
8000
±25%
9860
±25%
100
±5%
(1)
160
±5%
(1)
250
±5%
(1)
315
±5%
(1)
400
±8%
(1)
630
±10%
(1)
7400
±25%
Note
1. Measured in combination with an equal gapped core half.
2008 Sep 01
2
µ
e
≈
23
≈
37
≈
58
≈
73
≈
93
≈
147
≈
1860
≈
1100
≈
1860
≈
2300
≈
23
≈
37
≈
58
≈
73
≈
93
≈
147
≈
1730
TOTAL AIR GAP
(µm)
≈
10440
≈
5520
≈
3040
≈
2240
≈
1660
≈
940
≈
0
≈
0
≈
0
≈
0
≈
10440
≈
5520
≈
3040
≈
2240
≈
1660
≈
940
≈
0
TYPE NUMBER
E55/28/25-3C90-E100
E55/28/25-3C90-E160
E55/28/25-3C90-E250
E55/28/25-3C90-E315
E55/28/25-3C90-E400
E55/28/25-3C90-E630
E55/28/25-3C90
E55/28/25-3C92
E55/28/25-3C94
E55/28/25-3C95
E55/28/25-3F3-E100
E55/28/25-3F3-E160
E55/28/25-3F3-E250
E55/28/25-3F3-E315
E55/28/25-3F3-E400
E55/28/25-3F3-E630
E55/28/25-3F3
Ferroxcube
E cores and accessories
DATA SHEET STATUS DEFINITIONS
DATA SHEET
STATUS
Preliminary
specification
Product specification
PRODUCT
STATUS
Development
DEFINITIONS
E55/28/25
This data sheet contains preliminary data. Ferroxcube reserves the right to
make changes at any time without notice in order to improve design and
supply the best possible product.
This data sheet contains final specifications. Ferroxcube reserves the right
to make changes at any time without notice in order to improve design and
supply the best possible product.
Production
DISCLAIMER
Life support applications
These products are not designed for use in life support appliances, devices, or systems
where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers
using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube
for any damages resulting from such application.
PRODUCT STATUS DEFINITIONS
STATUS
Prototype
Design-in
Preferred
Support
INDICATION
DEFINITION
These are products that have been made as development samples for the purposes of
technical evaluation only. The data for these types is provisional and is subject to
change.
These products are recommended for new designs.
These products are recommended for use in current designs and are available via our
sales channels.
These products are
not
recommended for new designs and may not be available
through all of our sales channels. Customers are advised to check for availability.
2008 Sep 01
4
Embedded System
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