TTC-167

Overview

The Tamura TTC-167 is a telecom modem transformer designed for audio and signal applications. It features a 1:1 turns ratio with primary and secondary impedances of 10 kOhms each. The component exhibits a typical primary DC resistance (DCR) of 330 Ohms and a secondary DCR of 420 Ohms. Insertion loss is specified at 1.7 dB at 1 kHz, with an operating frequency range of 300 Hz to 4 kHz. It utilizes a through-hole package with PC pin leads and provides 1000 Vrms isolation voltage.

Feature Summary

• Provides accurate signal transmission via a 1:1 turns ratio
• Designed for dry coupling applications in telecommunications
• Features through-hole mounting with PC pin leads

Applications

• Modem transformers
• Audio signal processing
• Telecommunications equipment

Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may be hosted by distributors. Confirm that the 10 kOhm impedance rating aligns with circuit requirements. Ensure the through-hole footprint matches the PCB design constraints. Check compliance status against project specifications.

Selection Notes

Select this component for circuits requiring balanced signal transmission with high impedance matching. The 10 kOhm primary and secondary impedances suit specific line interface designs. Consider the 300 Hz to 4 kHz bandwidth for voice-band applications. The 1000 Vrms isolation ensures safety in telecom environments.

Part Context

This part belongs to the Tamura TTC series of audio and signal transformers. It is categorized under telecom transformers and modem transformers. The series supports various signal conditioning needs in communication hardware.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided data.

FAQ

What is the insertion loss specification?

The insertion loss is 1.7 dB at 1 kHz.

Does this transformer support dry coupling?

Yes, the TTC-167 is suitable for dry coupling applications.