89
CO UPLING TRANSFO RMER
SERIES EP
-
Using Ferrite EP cores these transformers are capable of
handling 2.5mA to 5mA DC unbalanced. They are good for
coupling and for RF telecommunication equipment.
ELECTRICAL SPECIFICATIO N AT 2 5 °C
Part
Number
Pri
Z
Sec
Z
Max
Lp min @ Insertion
Frequency
Response
Longitudinal
balance min loss ( db ) voltage ( VRMS )
Return
Break-down
Size
Unbalance 1 KHz 1 V Loss @
( W )
( W )
( DC mA )
( mH )
1 KHz
( db )
Max
( db )
300 Hz to 3500 Hz
( db )
ERL min
Pri to Sec
EP13-0191 600
EP13-0192 900
600
900
NA
NA
750
1000
1.0
1.0
± 0.25
± 0.25
60
60
26
26
1000 Volts
1000 Volts
1
1
EP17-0181 600
EP17-0182 900
600
900
2.5
2.5
750
1000
1.0
1.0
± 0.25
± 0.25
60
60
22
22
1000 Volts
1000 Volts
2
2
EP20-0171 600
EP20-0172 600/SPLIT
EP20-0173 600
600
600
900
600
5
5
5
4
750
750
750
0.8
0.8
0.8
0.8
± 0.25
± 0.25
± 0.25
± 0.25
60
60
60
60
26
26
26
26
1500 Volts
1500 Volts
1500 Volts
1500 Volts
3
3
3
3
EP20-0174 900/SPLIT
1250
NO TE: In the configuration of split primary, pins 1 and 4 for primary 1, and pins 2 and 5 for primary 2.
SCHEMATIC
FO R EP20
FO R EP13 & 17
DIMENSIO NS IN MILLIMETERS
2
7
9
1
5
8
Spacing
between
2 windings
nominal
D
Lead
length
nominal
E
Lead
spacing
nominal
F
Width
Max
A
Length
Max
B
Height
Max
C
Size
4
4
13.85
20.10
22.10
13.85
20.10
25.50
13.20
15.50
20.35
10.16
15.24
4.7
5.0
2.54
5.08
5.08
1
2
3
SPLIT PRIMARY
1
7
9
17.78 ± 0.13
6.35
4
2
NO TE EP 13 & 17 are also available with 8 terminal bobbins, instead of 10 as per drawing.
5
In this case, primary will be pins 1 and 4, and secondary will be pins 5 and 8.
B
O
O
2
O
5
O
O
4
1
3
C
A
7
10
O
9
O
8
O
6
E
O
O
D
F
BO TTO M VIEW
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