Part Turns Ratio OCL CW/WLLPackage/ Primary Pins
Number (Pri:Sec ±2%) Line Side (pF MAX) (µH MAX) Schematic
Transmit Receive (mH MIN) Transmit Receive
TX9031 1CT:2.4 1:1CT 1.2 35 & 35 .50 & .80 BRT 1-3, 10-12, 13-15, 22-24 45-43, 42-40, 33-31, 30-28
Electrical Specifications @ 25°C — Operating Temperature -40°C to +85°C
NOTE: For extended temperature range transformers, OCL (Open Circuit Inductance for the primary winding) is specified at both -40°C and +25°C.
At -40°C, OCL is 600 µH minimum. All other parameters are specified at +25°C.
T1/CEPT/ISDN-PRI TRANSFORMER
Quad Port SMT Transformer Module
with Line Side Protection
148
247
346
445
544
643
742
841
940
10 39
11 38
12 37
13 36
14 35
15 34
16 33
17 32
18 31
19 30
20 29
21 28
22 27
23 26
24 25
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
Surge
Suppressor
CH1 TX
CH1 RX
CH2 RX
CH2 TX
CH3 TX
CH3 RX
CH4 RX
CH4 TX
CHIP SIDE
LINE SIDE
Four transmit transformers, four receive transformers and
line side protection circuit in a surface mount package
Matched to Infineon’s QUADFALC and QUADLIU transceivers
Patented “Interlock Base” construction for high reliability
IC grade transfer-molded package withstands
235°C IR reflow temperature
Minimum Isolation voltage: 1500 Vrms
UL recognized
SUGGESTED PAD LAYOUT
.020 MIN
0,51
.894
22,71
.401
10,19
.092
2,34
.575
14,61
.030
0,76
.305
7,75
.008
0,20
.004/0,10
48 Surfaces
TX9031
DATE CODE
COUNTRY OF ORIGIN
1.255
31,88
.712
18,08
.852
21,64
46X .050
1,27
1.150
29,21
.052
1,32
Mechanical Schematic
BRT
Weight ...............9.2 grams
Tape & Reel..........150/reel
Tube ......................15/tube
Dimensions: Inches
mm
Unless otherwise specified, all tolerances are ± .010
0,25
www.pulseeng.com
T670.A (5/06)
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