Epcos B 65855 Service Manual
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EP 5
Core
EP 5 through EP 20
■ For small interface transformers and filter chokes
■ Suitable for high precise feed-through gapping
■ Same footprint as EE5
■ A
value increases about 40 % against EE5
L
■ Winding area larger than EE5
■ EP cores are supplied in sets
Magnetic characteristics (per set)
Σl/A = 3,154 mm
–1
le= 9,73 mm
= 3,09 mm
A
e
A
= 2,34 mm
min
Ve= 30 mm
2
2
3
Approx. weight 0,5 g/set
Gapped
B65855
_
6,15 0,3
2,8
_
3,9 0,25
_
3,8+0,4
5,7 0,2
_
ø1,8 0,15
4,3+0,25
)
∗
gapped (one-sided)
)
∗
FEP0002-E
s
Material A
T38 16
Ungapped
Material A
T38 2000 + 40/– 30 % 5100 B65855-A-Y38
T42 2200 + 40/– 30 % 5500 B65855-A-Y42
value
L
µ
e
s
Ordering code
approx.
nH
mm
± 3 % 40 0,24 B65855-A16-A38
± 3 % 63 0,15 B65855-A25-A38
25
± 5 % 100 0,10 B65855-A40-J38
40
± 8 % 160 0,06 B65855-A63-D38
63
nH
value
L
µ
e
Ordering code
275 08/01
EP 5
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
Solderability: to IEC 60068-2-20, test Ta, method 1 (aging 3): 350
Resistance to soldering heat: to IEC 60068-2-20, test Tb, method 1B: 350
°C), color code black
°C, 1 s
°C, 3,5 s
permissible soldering temperature for wire-wrap connection on coil former: 400
Winding: see “Processing Notes”, page 156
B65856Accessories
°C, 1 s
Sections A
mm
N
2
l
N
mm
A
valueµΩTerminals Ordering code
R
1 2,1 10,4 168 6 B65856-A1006-T1
Cap yoke B65856-C2000
Coil former and cape yoke on request.
Coil former Cap yoke
1,85
0,6
_
0,14,1
5,2 max.
2,6±0,05
1,9
1,85
2,9+0,1
1,1
_
0,13,7
4,9 max.
8,0 max.
Recommended
PCB layout
1,5
8,6
4,6 max.
1,85
1,85
FEP0003-R
6,6+04
5
2,2
6,8 max.
2,4
4 max.
0,2
FEP0037-Z
276 08/01
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