TTC-118

Overview

The Tamura TTC-118 is a through-hole audio transformer designed for telecom applications. It features a primary impedance of 600 Ohms and a secondary impedance of 600 Ohms with a turns ratio of 1:1.06. The device operates within a frequency range of 300Hz to 3.5kHz. Key electrical specifications include a maximum insertion loss of 1.2dB at 1kHz and voltage isolation of 1500VRMS for one minute. The component measures 20.30mm x 16.50mm and utilizes PC pin termination.

Feature Summary

• Provides dry coupling functionality for signal transmission
• Ensures electrical isolation between circuit sections
• Supports standard telecom impedance matching requirements

Applications

• Telecom signal coupling
• Audio line interfacing
• Impedance matching in communication circuits

Procurement Notes

Verify the specific datasheet revision and RoHS compliance status prior to procurement, as manufacturing updates may occur. Confirm that the bulk packaging format aligns with your assembly line requirements. Ensure the through-hole footprint dimensions match your PCB design constraints to avoid mechanical interference during installation.

Selection Notes

Select this component when a 600-ohm balanced interface is required for audio or telecom signals. The specified frequency response suits voice-band applications. Consider the physical size and through-hole mounting style if surface-mount alternatives are unsuitable for the target environment.

Part Context

This part belongs to the Tamura TTC series of audio and signal transformers. These components are engineered for reliable performance in telecommunications equipment. The series offers various impedance configurations tailored for different network standards and signal processing needs.

Replacement Considerations

Direct substitutes must match the 600:600 ohm impedance ratio and 300Hz-3.5kHz frequency range. Verify equivalent insertion loss and isolation ratings. Check mechanical compatibility with existing PCB layouts before switching suppliers.