Epcos B 65857 Service Manual
www.DataSheet4U.com
EPX 7/9
Preliminary data
■ For xDSL-line transformer
■ Foot print of EP7
■ Height of EP13
■ Optimized design for low distortion
■ EPX cores are supplied in sets
Magnetic characteristics (per set)
Σl/A = 0,88 mm
le= 15,6 mm
= 17,7 mm
A
e
A
= 13,9 mm
min
Ve= 276 mm
–1
2
2
3
Approx. weight 2,8 g/set
Gapped
0,4
_
9
2,3
1,7±0,1
_
4,6+0,4
7,5 0,2
)
∗
gapped (one-sided)
B65857Core
4,5
7,2+0,4
_
9,4
0,4
_
3,4 0,2
FEP0008-O
)
∗
s
Material A
T38 63
T57 63
Ungapped
Material A
T57 2600 + 30/– 20 % 1830 B65857-A-R57
T38 9000 + 40/– 30 % 6290 B65857-A-Y38
nH
value
L
s
approx.
mm
µ
e
Ordering code
± 3 % 0,35 44 B65857-A63-A38
± 3 % 0,22 70 B65857-A100-A38
100
± 4 % 0,14 112 B65857-A160-B38
160
± 4 % 0,11 140 B65857-A200-B38
200
± 5 % 0,09 175 B65857-A250-J38
250
315
± 6 % 0,06 220 B65857-A315-C38
± 7 % 0,05 280 B65857-A400-E38
400
± 3 % 0,35 44 B65857-A63-A57
± 3 % 0,22 70 B65857-A100-A57
100
± 4 % 0,14 112 B65857-A160-B57
160
± 4 % 0,11 140 B65857-A200-B57
200
250
± 5 % 0,09 175 B65857-A250-J57
315
± 6 % 0,06 220 B65857-A315-C57
± 7 % 0,05 280 B65857-A400-E57
400
nH
value
L
µ
e
Ordering code
281 08/01
EPX 7/9
Preliminary data
SMD coil former with gullwing terminals
Material: GFR liquid crystal polymer (UL 94 V-0, insulation class to IEC 60085:
F max. operating temperature 155 °C), color code natural or black
Solderability: to IEC 60068-2-20, Test Ta, method 1 (aging 3): 350 °C, 1 s
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350 °C, 3,5 s
permissible soldering temperature for wire-wrap connection on coil former: 400°C, 1 s
Winding: see “Processing Notes”, page 160
B65858Accessories
Sections A
mm
N
2
l
N
mm
A
µΩ
value
R
Terminals Ordering code
1 4,1 22,9 191,8 8 B65858-A1008-T1
_
0,27,1
_
5,95±0,1
2,54
3 x 2,54 = 7,62
0,27,5
_
0,154,55
_
0,29,4
3,45+0,15
6,1±0,2
1,2
4,5_0,1
0,6
12,4±0,2
Recommended PCB layout
7,62
0,6
2,5
13,6
2,54
FEP0009-P
282 08/01
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