T1/CEPT/ISDN-PRI
Interface Transformers
E L E C T R O N I C S I N C .
• Optimizied for Leading Transceiver I.C.’s •
• Meets or exceeds UL1459, UL1950 & EN60950 Standards •
• 1500 Vrms Isolation •
• See Selection Guide for I.C. Cross Reference •
Electrical Parameters @ 25° C
Turns
Ratio
OCL
(mH Min.)
Cw/w
(pF Max.)
LI
Pri. DCR
(Ω Max.)
Sec. DCR
(Ω Max.)
Schematic
Part
Number
Primary
Pins
(µH Max.)
EPR1026
EPR1027
EPR1028
EPR1029
EPR1030
EPR1031
EPR1032
EPR1033
1:2CT/1:2CT
1:2CT/1:1.36
1:2CT/1:2CT
1:2CT/1:1
1:1.26/1:2CT
1:1.15CT/1:2CT
1:1CT/2CT:1
1:4CT/1:4CT
1.2 / 1.2
1.2 / 1.2
2.0 / 2.0
1.2 / 1.2
1.5 / 1.2
1.5 / 1.2
0.8 / 0.8
0.5 / 0.5
1.2 / 0.6
35 / 35
35 / 35
50 / 50
30 / 30
40 / 40
35 / 40
30 / 30
40 / 40
40 / 40
0.5 / 0.5
0.5 / 0.5
0.6 / 0.6
0.5 / 0.5
0.5 / 0.4
0.5 / 0.4
0.6 / 0.6
0.5 / 0.5
0.8 / 0.8
0.7 / 0.7
0.8 / 0.8
1.0 / 1.0
0.7 / 0.7
0.7 / 0.7
0.7 / 0.7
0.5 / 0.5
0.7 / 0.7
1.0 / 0.8
1.2 / 1.2
1.2 / 1.0
2.0 / 2.0
1.2 / 0.7
0.9 / 1.3
0.9 / 1.3
0.5 / 0.2
1.5 / 1.5
1.0 / 2.0
A
B
C
D
A
A
C
C
E
14,12 / 5,7
14,12 / 5,7
14,12 /10,8
1,3 / 5,7
14,12 / 5,7
14,12 / 5,7
14,12 / 5,7
1,3 / 5,7
EPR1034* 1CT:1CT/1CT:3CT
1,3 / 4, 6 / 7, 8
Schematic
A
B
C
D
E
14 12
10
9
8
14 12
10
8
14 12
10
8
14 13 12 10
8
16 15 14
11 10
9
7
1
2
3
5
7
1
2
3
5
7
1
2
3
5
6
7
4
5
6
8
1
2
3
5
7
1
2
3
Dimensions
L*
A
Package
(Inches)
(Millimeters)
Nom.
Min.
Dim.
Max. Nom. Min.
Max.
PCA
A
B
C
D
E
F
G
H
I
.780 .800 .790 19.81 20.32
20.07
9.52
6.10
15.24
.381
2.54
7.62
.508
5.08
3.17
EPRXXXX
Date Code
B
E
Pin 1
I.D.
.365 .385 .375
.230 .250 .240
9.27 9.78
5.84 6.35
---
.013 .017 .015
--- --- .100
---
.600
---
.330 .432
--- ---
---
C
J
.290 .310 .300
.017 .023 .020
7.37 7.87
.432 .584
H
I
---
---
.200
---
---
G
F
J
.110 .140 .125
2.79 3.57
*16 Pin Dimensions
.880 .900 .890 22.35 22.86
D
K
L
22.61
17.78
K*
---
---
.700
---
---
= * 16 Pin
CSR1026 - CSR1034 Rev. 1 8/15/01
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com
Product performance is limited to specified parameters. Data is subject to change without prior notice.