T3/DS3/E3/STS-1
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 UL1950, EN60950 & G703 Standards •
• 2000 Vrms Isolation •
• See Selection Guide for I.C. Cross Reference •
Electrical Parameters @ 25° C
Turns
Ratio
OCL
(µH Min.)
Cw/w
(pF Max.)
LI
DCR
(Ω Max.)
Part
Number
Primary
Pins
(µH Max.)
EPR1301G*
EPR1302G
EPR1303G
EPR1304G
EPR1326G*
EPR1327G
EPR1328G
EPR1329G
1:1
1:2CT
1:4CT
1:1.73CT
1:1
1:2CT
1:4CT
1:1.73CT
40
35
150
50
40
35
13
20
15
12
13
20
15
12
0.12
0.12
0.3
1.7 / 1.7
1.0 / 1.0
1.4 / 1.4
1.0 / 1.8
1.4 / 1.2
1.4 / 1.4
1.4 / 1.4
1.2 / 1.2
1, 5 *
1, 5
1, 5
1, 5
1, 5 *
1, 5
1, 5
1, 5
0.1
0.12
0.12
0.3
150
50
0.1
• * Pin 4 not connected •
Schematic
1
5
2
4
6
Package
A
Dimensions
(Inches)
(millimeters)
J
N
Min.
Nom.
Dim.
Max. Nom. Min.
Max.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
.280 .300 .290 7.11 7.62 7.37
.280 .300 .290 7.11 7.62 7.37
.230 .250 .240 5.84 6.35 6.10
Pin 1
I.D.
PCA
EPRXXXXG
D.C.
Pad
P
B
Q
Layout
---
.010 .015 .0125 .254 .381 .318
--- --- .100 --- --- 2.54
---
.500
---
--- 12.70
M
D
.380 .400 .390 13.72 12.22 13.97
.018 .022 .020 .457 .559 .508
.008 .012 .010 .203 .305 .254
E
C
---
0°
---
8°
.085
---
---
0°
---
8°
2.16
---
K
.035 .055 .045 .635 1.14 .889
F
L
I
---
---
---
---
---
---
---
---
.030
.100
.085
.610
---
---
---
---
---
---
---
.762
2.54
2.16
H
G
--- 15.50
CSR1301G - CSR1329G Rev. - 3/12/99
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.