T1/CEPT/ISDN-PRI TRANSFORMERS
Quad Port SMT Transformer Modules with
IC Side Protection
Eight transformers in a low profile surface mount package
Includes IC Side Protection Circuit on each channel to
suppress low voltage transients
Patented “Interlock Base” construction for high reliability
Minimum Isolation voltage: 1500 Vrms
Extended temperature range
UL recognized
Electrical Specifications @ 25°C
Part
Number
Turns Ratio
(Pri:Sec ±2%)
TX
RX
OCL Line Side
(mH MIN)
C
W
/
W
(pF MAX)
35
L
L
(µH MAX)
.3
Package/
Schematic
QTERA
E
XTENDED
T
EMPERATURE
R
ANGE
M
ODEL
– O
PERATING
T
EMPERATURE
-40°C
TO
+85°C
TX9025
1:2
1:2
1.2
NOTE:
The crosstalk attenuation is typically 50dB or better.
Mechanical
QTERA
1.125 MAX
28,58
.090
40X 2,29
.050 40X .030
0,76
1,27
19X .050 = .950
1,27
24,13
CHIP SIDE
SUGGESTED PAD LAYOUT
Schematic
1
2
3
4
5
6
7
8
V
G
1:2.0
V
G
1:2.0 CT
40
39
38
37
36
35
.640 MAX
16,26
40X .018
0,46
.480
12,19
1:2.0 CT
DATE CODE
COUNTRY OF ORIGIN
TX9025
34
33
.485
12,32
0° 8°
.285 MAX
7,24
.045
40X 1,14
10
11
12
V
G
1:2.0
31
30
29
1:2.0
28
27
1:2.0 CT
.004/0,10
40 Surfaces
.010
0,25
13
14
15
16
17
V
G
Weight
...............5.0 grams
Tape & Reel..........250/reel
Tube
......................15/tube
Dimensions:
Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
26
25
24
23
22
21
For More Information :
UNITED STATES
(Worldwide)
12220 World Trade Drive
San Diego, CA 92128
U.S.A.
http://www.pulseeng.com
TEL: 858 674 8100
FAX: 858 674 8262
18
19
20
1:2.0 CT
UNITED KINGDOM
(Northern Europe)
1 & 2 Huxley Road
The Surrey Research Park
Guildford, Surrey GU2 5RE
United Kingdom
TEL: 44 1483 401700
FAX: 44 1483 401701
FRANCE
SINGAPORE
(Southern Europe) (Southern Asia)
Zone Industrielle
F-39270
Orgelet
France
TEL: 33 3 84 35 04 04
FAX: 33 3 84 25 46 41
150 Kampong Ampat
#07-01/02
KA Centre
Singapore 368324
TEL: 65 6287 8998
FAX: 65 6280 0080
TAIWAN, R.O.C.
(Northern Asia)
3F-4, No. 81, Sec. 1
HsinTai Wu Road
Hsi-Chih, Taipei Hsien
Taiwan, R.O.C.
Tel: 886 2 2698 0228
FAX: 886 2 2698 0948
HONG KONG
(China/Hong Kong)
9/F, Phase 2, Tai Sang
Shatin Warehouse Centre
6 Wong Chuk Yeung Street
Fotan, Shatin, Hong Kong
TEL: 852 2788 6588
FAX: 852 2776 1055
DISTRIBUTOR
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product
names mentioned herein may be products and/or registered trademarks of their respective owners.
©2004, Pulse Engineering, Inc. All Rights Reserved.
T686.A (5/04)
LINE SIDE
19X .050
1,27
.950
24,13
9
1:2.0
32