ISDN “S” Interface Isolation Transformers
E L E C T R O N I C S I N C .
EPA1155-X
• UL1459 Approved, File #132261
• Meets CCITT 1.430 Four Wire “S” Interface
• Single Low Profile Packages
• Hipot : 2000 Vrms
Electrical Parameters @ 25° C
PCA
Part
I.C.
Function
Interwinding
Capacitance
(pF Max.)
Turns
Ratio
DCR
OCL
Leakage
Inductance
(µH Max.)
Package &
Schematic
Manufacturer
Part Number
(Ω Max.)
(mH Min.)
Number
( 5ꢀ)
Xmit & Rvc
Xmit & Rvc
Rvc
100
1:1
2.50
2.50
EPA1155-1
22
5
A
Motorola MC145174
Motorola MC145175
National TP3420
SGS 5420
Rvc
Xmit & Rvc
Xmit & Rvc
Xmit
100
100
1:1.8
1:2
2.50
2.50
4.50
5.00
EPA1155-2
EPA1155-3
22
22
5
8
B
A
Intel 29C53
Mitel MT8930
National TP3420
Siemens PEB2080
SGS 5420
Xmit & Rvc
Rvc
Rcv
100
100
100
1:2.5
1:2
2.50
2.50
2.50
6.00
5.00
5.00
EPA1155-4
EPA1155-5
EPA1155-12
22
22
22
12
30
11
B
A
A
Intel 29C53
---
---
---
1:2
---
•
Longitudinal Balance : -60 dB Min. @ 10 KHz - 300 KHz
•
Schematic A
Schematic B
1
2
3
6
5
4
7
6
5
4
1
2
3
Package A
Package B
6
5
4
7
6
5
4
1
1
Marking :
PCA
Marking :
.550
.550
PCA
EPA1155-X
D.C.
2
2
(14.22)
(14.22)
EPA1155-X
D.C.
3
3
.550
.550
(14.22)
(14.22)
.025/.035
.025/.035
.390
.390
(.635/.889)
(.635/.889)
(9.91)
(9.91)
.017/.022
(.432/584)
.017/.022
(.432/584)
.115/.125
(2.92/3.18)
.115/.125
(2.92/3.18)
.400
.400
(10.16)
(10.16)
.100 (2.54)
.200 (5.08)
.100 (2.54)
.200 (5.08)
.400
(10.16)
.200 (5.08)
Bottom View
Bottom View
.010 /.25
Unless Otherwise Specified Dimensions are in Inches /mm
Product performance is limited to specified parameters. Data is subject to change without prior notice.
CSA1155-XS Rev. 2 7/21/03
PCA ELECTRONICS, INC.
16799 SCHOENBORN ST.
NORTH HILLS, CA 91343
TEL: (818) 892-0761
FAX: (818) 894-5791
http://www.pca.com