ISDN S - Interface Low Profile SMT
Dual Transformer
ELECTRONICS INC.
EPA3490G
• Meets Pulse Waveform Template of CCITT 1.430 •
with recommended Chip Pair AT&T/Lucent T7250/6/9
and Motorola MC145474/5
• 2000 Vrms Isolation •
• Operating Temp. 0°C - 70°C •
Electrical Parameters @ 25° C
OCL
(mH Min.)
Pins 1-4,5-8 (Pri.)
Leakage Inductance
(µH Max.)
A &B (Sec.)
Interwinding Capacitance
(pF Max.)
A&B
100
Distributed Capacitance
(pF Max.)
A &B (Pri.)
110
Turns Ratio
(Pri : Sec
±2%)
A&B
1:2.5
I dc
(mA Max.)
A&B
1
DCR
(Ω
±25%)
Pri
Sec
5.3
22
40
2.4
Schematic
A
B
12 11 10 9
Package
A
J
Pin 1
I.D.
N
Sec.
(Chip Side)
Pri.
(Line Side)
16 15 14 13
1
2 3
4
5
6 7
8
PCA
EPA3490G
D.C.
D
B
Q
Solder Pad
Layout
P
Dimensions
M
Dim.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
P
Q
Min.
.930
.570
.280
---
.005
---
.680
.018
---
---
0°
.025
(Inches)
Max.
.950
.590
.300
---
.015
---
.700
.022
---
---
8°
.045
Nom.
.940
.580
.290
.700
.010
.100
.690
.020
.010
.120
---
.035
.030
.100
.085
.750
(Millimeters)
Min.
Max. Nom.
23.62
14.48
7.11
---
.127
---
17.28
.457
---
---
0°
.635
---
24.14
14.99
7.62
---
.381
---
17.78
.559
---
---
8°
1.14
23.88
14.73
7.37
17.78
0.26
2.54
17.53
0.51
0.26
3.05
---
0.89
.762
2.54
2.16
19.05
C
E
K
H
F
L
G
I
PCA ELECTRONICS, INC.
6799 SCHOENBORN ST.
NORTH HILLS, CA 91343
CSA3490G
Rev. -
6/9/98
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. ]
