PCA EPA3557S

T1/E1/ CEPT Quad Port Transformer
EPA3557S
ELECTRONICS INC.
• 4 Transmit, 4 Receive Quad Port surface mount Transformer
•
• 1500 Vrms Isolation •
• Operating Temperature -0°C to 70°C
•
Electrical Parameters @ 25° C
Primary Inductance
(mH Min.)
Leakage Inductance
(µH Max.)
Interwinding Capacitance
(pF Max.)
@ 100 KHz, 0.1 Vrms
@ 100 KHz, 0.1 Vrms
@ 100 KHz, 0.1 Vrms
1.2
1.0
DCR
(Ω Max.)
Turns Ratio
(± 3%)
TX
25
RX
TX
RX
Pri.
Sec.
Pri.
Sec.
Pri.:Sec.
Pri.:Sec.
0.9
1.3
0.9
1.3
1CT : 2
1:2 CT
TX3
RX3
Schematic
TX1
40
RX1
39 38
37
TX2
36 35
RX2
34
33
32
31 30
29 28
27
TX4
26 25
24
RX4
23
22
21
Sec.
Pri.
1
2
3
4
5
6
7
8
9
10 11
12
13 14
15 16
17
18 19
20
Package
A
Dimensions
N
J
Pin 1
I.D.
PCA
EPA3557S
Date Code
B
40
21
Solder
Pad
Layout
Q
1
20
P
M
D
E
C
K
L
H
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
F
I
Dim.
Min.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
1.110
.470
.250
--.010
--.590
.016
.008
--0°
.025
---------
(Inches)
Max. Nom.
1.130
.490
.270
--.015
--.610
.022
.012
--8°
.045
---------
1.120
.480
.260
.950
.012
.050
.600
.019
.010
.085
--.035
.030
.050
.090
.670
(Millimeters)
Min.
Max. Nom.
28.19
11.94
6.35
--.254
--14.99
.406
.203
--0°
.635
---------
28.70
12.45
6.86
--.381
--15.49
.559
.305
--8°
1.14
---------
28.45
12.19
6.60
24.13
.305
1.27
15.24
.483
.254
2.16
--.889
.762
1.27
2.29
17.02
G
CSA3557S
Rev. 4
2/10/99
Product performance is limited to specified parameters. Data is subject to change without prior notice.
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com