I M P E DA N C E M ATC H I N G T R A N S F O R M E R S Telephone Coupling Telephone Coupling Transformer STANCOR PART Schematic Sec. NUMBER Number Style Impedance Primary Secondary 15% 10% D.C. Curr. mA. Insertion Losses db Max @1K Hz Dimensions-Inches Primary DCR W L H A* B** C Weight Agency (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 105C -- -- 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. SCHEMATIC 4 2 5 6 7 600 3 SCHEMATIC 1 1 600 1 600 4 4000 600 6 3 4 6 6 SCHEMATIC 6 SCHEMATIC 2 1 8 SCHEMATIC 5 4 3 600 1 150 600 2 5 600 2 3 600 150 3 6 7 4 6 SCHEMATIC 3 1 600 SCHEMATIC 7 5 3 4 600 2 3 600 7 6 www.stancor.com 1 600 4 19 I M P E DA N C E M ATC H I N G T R A N S F O R M E R S Teleph o n e C o u p l i n g - T T P C S e r i e s Style A Style C B Typ. 5 Places A C H 1 L B W B C Style B Style D .750 C C A B B 20 www.stancor.com B Typ. 3 Places