Ferroxcube
ETD 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
0.947
547 0
72.0
76.0
71.0
≈
14
UNIT
mm
−1
mm
3
mm
mm
2
mm
2
g
0
30.6 1.6
22 1.4
0
0
9.8 0.6
0
9.8 0.6
handbook, halfpage
ETD29/16/10
11
0.3
15.8
0.2
MGC259
Dimensions in mm.
Fig.1 ETD29/16/10 core half.
Core halves
Clamping force for A
L
measurements, 40
±20
N. Gapped cores are available on request.
GRADE
3C90
3C94
3C95
3C96
3F3
3F35
A
L
(nH)
2350
±25%
2350
±25%
2860
±25%
2200
±25%
2200
±25%
1600
±25%
µ
e
≈
1770
≈
1770
≈
21 60
≈
1660
≈
1660
≈
1210
AIR GAP
(µm)
≈
0
≈
0
≈
0
≈
0
≈
0
≈
0
TYPE NUMBER
ETD29/16/10-3C90
ETD29/16/10-3C94
ETD29/16/10-3C95
ETD29/16/10-3C96
ETD29/16/10-3F3
ETD29/16/10-3F35
2008 Sep 01
2
Ferroxcube
ETD cores and accessories
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
≥320
≥300
f = 25 kHz;
ˆ
= 200 mT;
B
T = 100
°C
≤
0.66
−
−
−
−
−
f = 100 kHz;
ˆ
B = 100 mT;
T = 100
°C
≤
0.69
≤
0.5
−
≤
0.37
≤
0.65
−
CORE LOSS (W) at
f = 100 kHz;
ˆ
B = 200 mT;
T = 25
°C
−
−
≤
3.23
−
−
−
ETD29/16/10
f = 100 kHz;
ˆ
B = 200 mT;
T = 100
°C
−
≤
3.0
≤
3.06
≤
2.4
−
−
f = 400 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
−
≤
1.1
−
3C90
3C94
3C95
3C96
3F3
3F35
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
≥320
≥300
f = 500 kHz;
ˆ
B = 50 mT;
T = 100
°C
−
−
−
≤
2.0
−
≤
0.74
CORE LOSS (W) at
f = 500 kHz;
ˆ
B = 100 mT;
T = 100
°C
−
−
−
−
−
≤
5.7
f = 1 MHz;
ˆ
B = 30 mT;
T = 100
°C
−
−
−
−
−
−
f = 3 MHz;
ˆ
B = 10 mT;
T = 100
°C
−
−
−
−
−
−
3C90
3C94
3C95
3C96
3F3
3F35
2008 Sep 01
3
Ferroxcube
ETD cores and accessories
COIL FORMER
General data 13-pins ETD29/16/10 coil former
PARAMETER
Coil former material
Pin material
Maximum operating temperature
Resistance to soldering heat
Solderability
SPECIFICATION
ETD29/16/10
polybutyleneterephtalate (PBT), glass-reinforced, flame retardant
in accordance with
“UL 94V-0”;
UL file number E45329(R)
copper-tin alloy (CuSn), tin (Sn) plated
155
°C,
“IEC 60085”,
class F
“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
handbook, full pagewidth
35.2 max.
0
21.8
−0.2
+0.3
10 0
35.2 max.
21.2 0
−0.25
19.4 min.
25.4
max.
0
∅11.8 −0.25
3.4
5.08
30.48
Dimensions in mm.
0.7
25.4
1.6
+0.15
0
5.08
CBW281
Fig.2 ETD29/16/10 coil former; 13-pins.
Winding data and area product for 13-pins ETD29/16/10 coil former
NUMBER OF
SECTIONS
1
WINDING
AREA
(mm
2
)
95
MINIMUM
WINDING
WIDTH
(mm)
19.4
AVERAGE
LENGTH OF
TURN
(mm)
53
AREA
PRODUCT
Ae x Aw
(mm
4
)
7220
TYPE NUMBER
CPH-ETD29-1S-13P
2008 Sep 01
4
Ferroxcube
ETD cores and accessories
MOUNTING PARTS
General data
ITEM
Mounting clip
REMARKS
material: stainless steel
FIGURE
3
ETD29/16/10
TYPE NUMBER
CLI-ETD29
handbook, halfpage
8.0
18
33.6 min.
CBW589
0.4
8.7
Dimensions in mm.
Fig.3 Mounting clip for ETD29/16/10.
2008 Sep 01
5
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