Triad telecommunications transformers are designed to meet the requirements for access over leased private lines or through the dial-up switched telephone network. The TY series transformers are used for a variety of applications including impedance matching, isolation, repeat coil, line balancing, bridging, and hybrid circuits.

Designed to meet FCC Part 68.
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Unit of Measure
Items
Data/Voice Coupling Transformers

Data/Voice Coupling Transformer
Data/Voice Coupling Transformers

Data/Voice Coupling Transformer
Data/Voice Coupling Transformers (TY-307P)

Data/Voice Coupling Transformer
Data/Voice Coupling Transformers (TY-311P)

Data/Voice Coupling Transformer
Data/Voice Coupling Transformers (TY-304P)

Data/Voice Coupling Transformer
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Min. Longitudinal Balance1 N/A 45 dB60 dB
Longitudinal Balance Frequency2 N/A 1000 to 4000 Hz at 45 dB 200 to 1000 Hz at 60 dB
Dielectric Strength (FCC 68.304) N/A 1500 V
Maximum Input Level N/A 5 mW
Frequency Range (Data/Voice) N/A 300 to 3500 Hz
Frequency Range (Data) N/A 800 to 3500 Hz
Primary Impedance N/A 600 Ohm N/A 150 Ohm600 Ohm N/A 600 Ohm N/A 600 Ohm N/A 600 Ohm
Secondary Impedance N/A 600 Ohm
Max. DC Current N/A 100 mA N/A 75 mA N/A N/A N/A
Typical Insertion Loss N/A 1.5 dB N/A 1.5 dB N/A 1.0 dB N/A 1.0 dB N/A 1.0 dB
Typical Return Loss N/A 10 dB N/A 10 dB N/A 26 dB N/A 26 dB N/A 26 dB
Typical Frequency Response N/A ±0.5 dB
Trans-Hybrid Loss N/A
Schematic N/A
Schematic 1
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Schematic 2
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Schematic 3
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Schematic 3
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Schematic 4
Transformer Contact Type N/A N/A Split N/A N/A N/A Center Tap
Industry Standards N/A FCC 68.304 for Dielectric Strength FCC 68.310 for Longitudinal Balance
Applications N/A Bridging Circuits Hybrid Circuits Impedance Matching Isolation Line Balancing Repeat Coil
Technical Notes N/A
  1. Primary connections shown on left side of schematics.
  • 1 FCC 68.310
  • 2 FCC 68.310