ISDN-S Interface Dual Transformers
ELECTRONICS INC.
EPR1261G
• Optimized for Leading Transceiver I.C.’s •
• Meets CCITT 1.430 Four Wire “S” Interface •
• Meets or exceeds UL1459, UL1950 Standards •
• 1500 Vrms Isolation (1 Minute) •
Electrical Parameters @ 25° C
OCL
(mH Min.)
@ 10 KHz, 1 Vrms
20
Pins 1-3
Pins 6-8
Cw/w
(pF Max.)
@ 100 KHz, .02 Vrms
130
Pins 1-3 to 16-14
Pins 6-8 to 11-9
Leakage
Inductance
(µH Max.)
@ 100 KHz, .02 Vrms
5
Pins 1-3 w/ 16-14 shorted
Pins 6-8 w/ 11-9 shorted
Turns
Ratio
1:2CT
---
---
Pri. DCR
(Ω Max.)
2.65
---
---
Sec. DCR
(Ω Max.)
5
---
---
Primary
Pins
1,3/6,8
---
---
Schematic
Secondary
(Chip Side)
16
15
14
13 12
11
10
9
Primary
(Line Side)
1
2
3
4
5
6
7
8
Package
A
J
PCA
EPR1261G
D.C.
N
Dimensions
Dim.
Min.
(Inches)
Max. Nom.
(millimeters)
Min.
Max. Nom.
B
Q
Solder Pad
Layout
P
Pin 1
I.D.
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
Rev. 1
5/3/05 JDG
.930
.570
.385
---
.005
---
.725
.018
.008
---
0°
.025
---
---
---
---
.950
.590
.405
---
.015
---
.745
.022
.012
---
8°
.045
---
---
---
---
.940
.580
.395
.700
.010
.100
.735
.020
.010
.120
---
.035
.030
.100
.085
.780
23.62
14.48
9.78
---
.127
---
18.41
.457
.203
---
0°
.635
---
---
---
---
24.14
14.99
10.29
---
.381
---
18.92
.559
.305
---
8°
1.14
---
---
---
---
23.88
14.73
10.03
17.78
.254
2.54
18.67
.508
.254
3.05
---
.889
.762
2.54
2.16
19.81
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSR1261G
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. ]
