ISDN U Interface Transformers
ELECTRONICS INC.
• Optimizied for Leading Transceiver I.C.’s •
• Meets or exceeds UL1459 & IEC950 Standards •
• 2500 Vrms Isolation •
• See Selection Guide for I.C. Cross Reference •
• *Also available in 8 Pin Package •
Electrical Parameters @ 25° C
Part
Number
EPR1126
EPR1128
EPR1129
Turns
Ratio
1:.25:1
1.50:1
1.50:1
OCL
(mH Min.)
26.5-30.0
25.6-28.4
14.2-15.8
IDC
(mA Max.)
80
60
60
Pri. DCR
(Ω Max.)
12.5
20
16
Sec. DCR
(Ω Max.)
7
3
2.5
Line Side
Pins
1, 5
1, 5
1, 5
Schematic
A
B
B
Schematic
9
A
8
7
9
B
8
7
1
2
4
5
1
4
2
5
Package
D
10
PCA
EPR11XX
6
Dimensions
N
P
Pad
Layout
Dim.
(Inches)
Min.
Max. Nom.
(millimeters)
Min.
Max. Nom.
B
D.C.
Pin 1
i.d.
1
5
Q
M
A
I
C
E
K
H
F
L
G
A
B
C
D
E
F
G
H
I
K
L
M
N
P
Q
---
.950
---
---
24.13
---
.890 .910 .900 22.61 23.11 22.86
---
.500
---
---
12.70
---
.740 .760 .750 18.80 19.30 19.05
.019 .059 .039 .483 1.50 .991
.145 .155 .150 3.68 3.94 3.81
1.055 1.075 1.065 25.15 27.30 27.05
---
---
.038
---
---
.970
---
---
.015
---
---
.381
0°
8°
---
0°
8°
---
---
---
.140
---
---
3.56
---
---
.070
---
---
1.78
---
---
.150
---
---
3.81
---
---
.190
---
---
4.83
---
---
1.105 ---
---
28.07
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSR1136 - CSR1139
Rev. -
3/15/99
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
PCA [ PCA ELECTRONICS INC. ]
