www.stancor.com 19
iMPEDANCE MATCHiNg TRANSFORMERS
Telephone Coupling
Transformer
Telephone Coupling
Insertion DIMENSIONS-INCHES
STANCOR Impedance D.C. Losses
PART Schematic Primary Secondary Curr. db Max Primary Weight Agency
Sec. NUMBER Number Style ± 15% ± 10% mA. @1K Hz DCR W L H A* B** C (oz.) Certif.
A TTPC-2 1 B 600 600 0 1.2 46 0.781 0.650 0.490 - .145 0.530 0.5 -
B TTPC-6 3 A 600 600 C.T. 90 1.8 71 0.815 0.650 0.750 - .187 0.421 1.0 -
TTPC-8 2 A 600 C.T. 600 C.T. 0 1.2 36 0.781 0.650 0.740 - .187 0.421 0.6 -
C TTPC-11 5 A 4000 600 0 1.2 225 0.781 0.650 0.740 - .187 0.421 0.6 -
TTPC-13 4 C 600 600 C.T. Split 90 1.8 73 0.815 0.750 0.625 .150 .200 0.500 0.5 -
TTPC-14 6 & 7 D 600 600 C.T. Split 80 1.1 74 1.650 1.370 0.660 .200 .250 1.000 2.5 -
For outline drawings refer to page 20.
–– Maximum Operating Temperature 105°C
–– Dielectric Strength 1500 VRMS
–– Maximum distortion 0.5% at 300-3.5K Hz
–– Frequency Response ± 0.5db 300-3.5K Hz
–– Longitudinal Balance:
60db Min @ 200-1K Hz
40db Min @ 4K Hz
* Pin 1 to 2 only.
** Typical dimension pin to pin.
4
6
1
3
600 600
600 600
1 4
2 5
3 6
1 4
5
3 6
600600
2 5
3 8
6
7
600 600
4000 600
1 4
3 6
600 600
6 1
2
3
7 4
6 1
2
3
7 4
600
150
150
SCHEMATIC 1
SCHEMATIC 3
SCHEMATIC 4
SCHEMATIC 6
SCHEMATIC 2
SCHEMATIC 5
SCHEMATIC 7
20
iMPEDANCE MATCHiNg TRANSFORMERS
www.stancor.com
Telephone Coupling – TTPC Series
B
B
C
Style A
Style B
C
B
B
CL
Typ.
5 Places
1H
W
A
B
Style C
Typ.
3 Places
.750
A
C
B
Style D
