Ferroxcube
EFD cores and accessories
CORES
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
0.98
4700
68.0
69.0
66.0
≈
12
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
30 0.8
22.4 0.75
14.6
0.25
9.1 0.75
0.2
handbook, halfpage
EFD30/15/9
15
0.15
11.2
0.3
4.9
0.15
MGC183
Dimensions in mm.
Fig.1 EFD30/15/9 core half.
Core halves
A
L
measured in combination with a non-gapped core half, clamping force for A
L
measurements 70
±20
N.
GRADE
3C90
A
L
(nH)
160
±3%
250
±3%
315
±5%
400
±8%
630
±10%
2100
±25%
3C94
160
±3%
250
±3%
315
±5%
400
±8%
630
±10%
2100
±25%
3C95
3C96
2520
±25%
1900
±25%
µ
e
≈
125
≈
196
≈
247
≈
314
≈
494
≈
1720
≈
125
≈
196
≈
247
≈
314
≈
494
≈
1720
≈
1980
≈
1560
AIR GAP
(µm)
≈
690
≈
390
≈
290
≈
210
≈
120
≈
0
≈
690
≈
390
≈
290
≈
210
≈
120
≈
0
≈
0
≈
0
TYPE NUMBER
EFD30/15/9-3C90-A160
EFD30/15/9-3C90-A250
EFD30/15/9-3C90-A315
EFD30/15/9-3C90-A400
EFD30/15/9-3C90-A630
EFD30/15/9-3C90
EFD30/15/9-3C94-A160
EFD30/15/9-3C94-A250
EFD30/15/9-3C94-A315
EFD30/15/9-3C94-A400
EFD30/15/9-3C94-A630
EFD30/15/9-3C94
EFD30/15/9-3C95
EFD30/15/9-3C96
2008 Sep 01
2
Ferroxcube
EFD cores and accessories
EFD30/15/9
GRADE
3F3
A
L
(nH)
160
±3%
250
±3%
315
±5%
400
±8%
630
±10%
1900
±25%
µ
e
≈
125
≈
196
≈
247
≈
314
≈
494
≈
1560
≈
1170
≈
125
≈
196
≈
247
≈
314
≈
494
≈
780
≈
780
AIR GAP
(µm)
≈
690
≈
390
≈
290
≈
210
≈
120
≈
0
≈
0
≈
620
≈
320
≈
230
≈
160
≈
65
≈
0
≈
0
TYPE NUMBER
EFD30/15/9-3F3-A160
EFD30/15/9-3F3-A250
EFD30/15/9-3F3-A315
EFD30/15/9-3F3-A400
EFD30/15/9-3F3-A630
EFD30/15/9-3F3
EFD30/15/9-3F35
EFD30/15/9-3F4-A160
EFD30/15/9-3F4-A250
EFD30/15/9-3F4-A315
EFD30/15/9-3F4-A400
EFD30/15/9-3F4-A630
EFD30/15/9-3F4
EFD30/15/9-3F45
3F35
3F4
1450
±25%
160
±3%
250
±3%
315
±5%
400
±8%
630
±10%
1000
±25%
3F45
1000
±25%
Properties of core sets under power conditions
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥330
≥330
≥330
≥340
≥300
≥315
≥300
f = 25 kHz;
ˆ
B = 200 mT;
T = 100
°C
≤
0.50
−
−
−
−
−
−
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
0.54
≤
0.43
−
≤
0.32
−
≤
0.54
−
CORE LOSS (W) at
f = 100 kHz;
ˆ
B = 200 mT;
T = 25
°C
−
−
≤
2.77
−
−
−
−
f = 100 kHz;
ˆ
B = 200 mT;
T = 100
°C
−
≤
2.6
≤
2.63
≤
2.0
−
−
−
f = 400 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
0.82
≤
0.4
≤
0.91
−
3C90
3C94
3C95
3C96
3F35
3F3
3F4
Properties of core sets under power conditions (continued)
B (mT) at
GRADE
H = 250 A/m;
f = 25 kHz;
T = 100
°C
≥330
≥330
≥330
≥340
≥300
≥315
≥300
≥300
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
1.7
≤
0.6
−
−
−
f = 500 kHz;
ˆ
B = 100 mT;
T = 100
°C
−
−
−
−
≤
4.5
−
−
−
3
CORE LOSS (W) at
f = 1 MHz;
ˆ
B = 30 mT;
T = 100
°C
−
−
−
−
−
−
≤
1.4
≤
1.1
f = 1 MHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
−
−
−
−
≤
4.0
f = 3 MHz;
ˆ
B = 10 mT;
T = 100
°C
−
−
−
−
−
−
≤
2.2
≤
1.8
3C90
3C94
3C95
3C96
3F35
3F3
3F4
3F45
2008 Sep 01
Ferroxcube
EFD cores and accessories
COIL FORMERS
General data
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
EFD30/15/9
phenolformaldehyde (PF), glass-reinforced, flame retardant in accordance with
“UL 94V-0”;
UL file number E167521 (M)
copper-tin alloy (CuSn), tin (Sn) plated, see note 1
180
°C,
“IEC 60085”,
class H
“IEC 60068-2-20”
, Part 2, Test Tb, method 1B, 350
°C,
3.5 s
“IEC 60068-2-20”
, Part 2, Test Ta, method 1: 235
°C,
2 s
21.55
−0.2
16.4
−0.15
14.98
+0.1
12.55 12
max.
−0.2
3.6
5
15
25
29.2 max.
∅0.8
27.5
31.2 max.
5
CBW502
(20.1 min.)
5.23
+0.1
6.6
−0.15
1.3
±0.15
Dimensions in mm.
Fig.2 EFD30/15/9 coil former; 12-pins.
Winding data and area product for EFD30/15/9 coil former with 12-pins
NUMBER OF
SECTIONS
1
Note
1. Also available with post-inserted pins.
WINDING
AREA
(mm
2
)
52.3
MINIMUM
WINDING
WIDTH
(mm)
20.1
AVERAGE
LENGTH OF
TURN
(mm)
52.9
AREA
PRODUCT
Ae x Aw
(mm
4
)
3610
TYPE NUMBER
CSH-EFD30-1S-12P
(1)
2008 Sep 01
4
Ferroxcube
EFD cores and accessories
MOUNTING PARTS
General data
ITEM
Clip
REMARKS
stainless steel (CrNi); clamping force
≈35
N
FIGURE
3
EFD30/15/9
TYPE NUMBER
CLI-EFD30
handbook, halfpage
5
8
34 28.3
MGC185
5.5
Dimensions in mm.
Fig.3 CLI-EFD30 mounting clip.
2008 Sep 01
5
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