Dual T1/E1 Interface Transformer
ELECTRONICS INC.
EPR1571SE
• 1500 Vrms Isolation •
• Transmit and Receive Transformers in one SMD Package
• Operating Temperature -40°C to +85°C
•
•
Electrical Parameters @ 25° C
Primary
Inductance
(mH Min.)
1.5
Pins 1-2
1.5
Pins 9-10
Leakage
Inductance
(µH Max.)
0.80
Pri. to each
Sec. shorted
Interwinding
Capacitance
(pF Max.)
35
Pri. to
each Sec.
1:1.91CT
Pins 1-2
to 16-14
Turns Ratio
(Tol. ± 2%)
1:2.42CT
Pins 1-2
to 13-11
1:1.91
Pins 10-9
to 7-8
1:2.42
Pins 10-9
to 6-8
1.27
Pins 1-2
or 9-10
DCR
(Ω Max.)
2.4
Pins 16-14 or
13-11 or 6-8
Schematic
16
15
1
Pri.
2
14
13
12
11
Sec. B
Sec. A
6
10
Pri.
9
Sec. A
7
Sec. B
8
Dimensions
A
J
Pin 1
I.D.
Package
N
Dim.
(Inches)
Min.
Max. Nom.
(millimeters)
Min.
Max. Nom.
PCA
EPR1571SE
D.C.
B
Q
Solder Pad
Layout
P
D
M
C
E
K
H
F
L
G
I
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
.490
.260
.230
---
.005
---
.370
.018
.008
---
0°
.025
---
---
---
---
.510
.280
.250
---
.015
---
.390
.022
.012
---
8°
.045
---
---
---
---
.500
.270
.240
.350
.010
.050
.380
.020
.010
.075
4°
.035
.030
.050
.085
.440
12.45 12.95 12.70
6.60 7.11 6.86
5.84 6.35 6.09
---
---
8.90
.127 .381 .254
---
---
1.27
9.40 9.91 9.65
.457 .559 .508
.203 .305 .254
---
---
1.90
0°
8°
4°
.635 1.14 .889
---
---
.762
---
---
1.27
---
---
2.16
---
--- 11.18
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSR1571SE
Rev. - 1/24/01
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
PCA [ PCA ELECTRONICS INC. ]
