### ETC B66317G1000X127

```E 25/13/7 (EF 25)
Core
B66317
● In accordance with IEC 61246
● E cores are supplied as single units
Magnetic characteristics (per set)
Σl/A
le
Ae
Amin
Ve
= 1,1 mm–1
= 57,5 mm
= 52,5 mm2
= 51,5 mm2
= 3 020 mm3
Approx. weight 16 g/set
Ungapped
µe
Material
AL value
AL1min PV
N30
N27
nH
nH
2900 + 30/– 20 % 2530
1750 + 30/– 20 % 1520 1440
N67
1800 + 30/– 20 % 1570 1440
Ordering code
W/set
B66317-G-X130
0,59
B66317-G-X127
(200 mT, 25 kHz, 100 ˚C)
2,00
B66317-G-X167
(200 mT, 100 kHz, 100 ˚C)
Gapped
Material
N27,
N67
g
mm
0,10 ± 0,02
0,16 ± 0,02
0,25 ± 0,02
0,50 ± 0,05
1,00 ± 0,05
µe
AL value
approx.
nH
489
347
250
151
91
Ordering code
** = 27 (N27)
= 67 (N67)
B66317-G100-X1**
B66317-G160-X1**
B66317-G250-X1**
B66317-G500-X1**
B66317-G1000-X1**
425
302
218
131
79
The AL value in the table applies to a core set comprising one ungapped core (dimension g = 0) and
one gapped core (dimension g > 0).
Calculation factors (see page 423 for formulas)
Material
N27
N67
Validity range:
450
Relationship between
air gap – AL value
K1 (25 ˚C) K2 (25 ˚C)
90
– 0,731
90
– 0,731
Calculation of saturation current
K3 (25 ˚C)
139
135
K4 (25 ˚C)
– 0,847
– 0,820
K3 (100 ˚C) K4 (100 ˚C)
129
– 0,865
129
– 0,881
K1, K2: 0,10 mm < s < 2,00 mm
K3, K4: 60 nH < AL < 570 nH
Siemens Matsushita Components
E 25/13/7 (EF 25)
Accessories
B66208
Coil former (magnetic axis horizontal or vertical)
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 ˚C), color code black
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 ˚C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 ˚C, 3,5 s
Winding:
see page 159
Squared pins
Material:
Stainless spring steel (0,25 mm)
Coil former
Ordering code
Figure
Sections
AN
mm2
lN
mm
AR value
µΩ
Pins
1
1
61
50
28
10
B66208-A1110-T1
2
1
61
50
28
10
B66208-J1110-T1
Yoke (ordering code per piece, 2 are required)
B66208-A2010
Figure 1, horizontal version
27,5 _ 0,3
7,7+0,2
2,2±0,1
3,5 _ 0,5
0,7±0,1
9,4 _ 0,25
17 _ 0,3
0,7±0,1
17,8 max.
17,3 _ 0,25
7,7+0,2
0,7
9,4 _ 0,25
ø1,6+0,1
28 _ 0,35
5
5,08
10
4 x 5,08 = 20,32
6.
1
Hole arrangement
View in
mounting direction
20,32
FEK0352-I
Siemens Matsushita Components
451
E 25/13/7 (EF 25)
Accessories
B66208
Figure 2, vertical version
27,5 _ 0,3
17
3,6 _ 0,6
2,2 _ 0,15
26 max.
9,6 _ 0,2
17,3 _ 0,3
9,6 _ 0,2
0,85±0,1
0,85±0,1
17,3 _ 0,3
0,7
ø 1,6+0,1
5,08
5
7,7+0,2
10
6.
1
4 x 5,08 = 20,32
7,7+0,2
Hole arrangement
View in mounting direction
12,7
FEK0323-5
Yoke
452
Siemens Matsushita Components
E 25/13/7 (EF 25)
Accessories
B66208
Coil former for SMPS transformers with line isolation
Material:
GFR polyterephthalate (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 ˚C), color code black
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 235 ˚C, 2 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 ˚C, 3,5 s
Winding:
see page 159
Squared pins
Yoke
Material:
Nickel silver (0,3 mm) with ground terminal
Coil former
Sections
Ordering code
AN
lN
AR value
mm2
mm
µΩ
1
56
52
32
Yoke (ordering code per piece, 2 piece required)
Pins
9
Coil former
Yoke
17,3 _ 0,2
17,3 _ 0,2
10 _ 0,15
10 _ 0,15
7,7+0,1
3,5 _ 0,2
15,6 _ 0,4
17,1_ 0,25
7,7+0,1
25,7 _ 0,2
B66208-J1009-T1
B66208-A2003
12,7±0,1
20,32
2,25 _ 0,2
26 _ 0,2
14,4
18,9 _ 0,4
ø1+0,1
2,54
6
1,25
9
5
1
Ground
Erdungspunkte
Siemens Matsushita Components
Hole arrangement
View in mounting direction
FEK0353-R
453
```