FERROXCUBE
DATA SHEET
E65/32/27
E cores and accessories
Supersedes data of September 2004
2008 Sep 01
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
0.274
79000
147
540
530
≈205
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
R
≤
0.5
handbook, halfpage
E65/32/27
65
+1.5
−1.2
+1.8
44.2
0
20 0
−0.7
+0.8
0
32.8 0
−0.6
22.2
R3
27.4 0
−0.8
CBW073
Dimensions in mm.
Fig.1 E65/32/27 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)
8600
±25%
3C92
3C94
3C95
3F3
6000
±25%
8600
±25%
10600
±25%
100
±5%
(1)
160
±5%
(1)
250
±5%
(1)
315
±5%
(1)
400
±8%
(1)
630
±10%
(1)
7300
±25%
Note
1. Measured in combination with an equal gapped core half.
2008 Sep 01
2
µ
e
≈
22
≈
35
≈
54
≈
68
≈
87
≈
136
≈
1860
≈
1310
≈
1860
≈
2300
≈
22
≈
35
≈
54
≈
68
≈
87
≈
136
≈
1580
TOTAL AIR GAP
(µm)
≈
14380
≈
7560
≈
4100
≈
3020
≈
2200
≈
1240
≈
0
≈
0
≈
0
≈
0
≈
14380
≈
7560
≈
4100
≈
3020
≈
2200
≈
1240
≈
0
TYPE NUMBER
E65/32/27-3C90-E100
E65/32/27-3C90-E160
E65/32/27-3C90-E250
E65/32/27-3C90-E315
E65/32/27-3C90-E400
E65/32/27-3C90-E630
E65/32/27-3C90
E65/32/27-3C92
E65/32/27-3C94
E65/32/27-3C95
E65/32/27-3F3-E100
E65/32/27-3F3-E160
E65/32/27-3F3-E250
E65/32/27-3F3-E315
E65/32/27-3F3-E400
E65/32/27-3F3-E630
E65/32/27-3F3
Ferroxcube
E cores and accessories
Core halves of high permeability grades
Clamping force for A
L
measurements, 60
±20
N.
GRADE
3C11
A
L
(nH)
16700
±25%
µ
e
≈
3 620
AIR GAP
(µm)
≈
0
E65/32/27
TYPE NUMBER
E65/32/27-3C11
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥320
≥370
≥320
≥320
≥320
f = 25 kHz;
ˆ
= 200 mT;
B
T = 100
°C
≤
9.1
−
−
−
−
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
12
≤
8.5
≤
8.5
−
≤
10.5
CORE LOSS (W) at
f = 100 kHz;
ˆ
B = 200 mT;
T = 25
°C
−
−
−
≤
49.8
−
f = 100 kHz;
ˆ
B = 200 mT;
T = 100
°C
−
≤
47
≤
47
≤
47.4
−
f = 400 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
−
≤
21
3C90
3C92
3C94
3C95
3F3
2008 Sep 01
3
Ferroxcube
E cores and accessories
COIL FORMER
General data for E65/32/27 coil former without pins
PARAMETER
Coil former material
Maximum operating temperature
SPECIFICATION
E65/32/27
polyethylene terephtalate (PET), glass reinforced, flame retardant in accordance
with
“UL 94V-0”
; UL file number E107536
130
°C,
“IEC 60 085”,
class B
handbook, full pagewidth
3
±0.1
(6×)
2
±0.1
5
±0.1
23
±0.1
0
0
53
27.7
+0.2
30
−0.2
−0.3
0
1.2
±0.1
20.6
+0.2
0
23.5
±0.2
44 0
−0.3
Dimensions in mm.
39.2 min.
42
±0.2
46
±0.2
CBW074
Fig.2 E65/32/27 coil former.
Winding data and area product for E65/32/27 coil former without pins (E)
NUMBER OF
SECTIONS
1
MINIMUM
WINDING
AREA
(mm
2
)
394
NOMINAL
WINDING
WIDTH
(mm)
39.2
AVERAGE
LENGTH OF
TURN
(mm)
150
AREA
PRODUCT
Ae x Aw
(mm
4
)
213000
TYPE NUMBER
CP-E65-1S-T
2008 Sep 01
4
Ferroxcube
E cores and accessories
MOUNTING PARTS
General data for mounting parts
ITEM
Clasp
Spring
steel, zinc (Zn) plated
steel, zinc (Zn) plated
REMARKS
FIGURE
3
4
E65/32/27
TYPE NUMBER
CLA-E65/32/27
SPR-E65/32/27
58.42
±0.2
14
∅
2.8
7
42.8
14
30
±0.3
27
35.56
±0.2
4
11
0.9
52
MFW048
0.6
68.5
±0.3
5
76
±0.4
Dimensions in mm.
Fig.3 E65/32/27 clasp.
7
±1
0.8 min
27.5
±0.2
70.5
±0.2
55
±0.5
66.1
±0.2
MFW049
4
±0.3
Dimensions in mm.
Fig.4 E65/32/27 spring.
2008 Sep 01
5
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