TTC-264

Overview

The Tamura TTC-264 is a through-hole audio transformer designed for telecommunications applications. It features a primary impedance of 600 Ohms and a secondary impedance of 470 Ohms, providing a 1:1 turns ratio. The component operates within a frequency range of 300Hz to 3.5kHz. Electrical characteristics include a primary DC resistance (DCR) of 108 Ohms and a secondary DCR of 120 Ohms. It supports a current rating of 100mA DC. The device utilizes a PC pin through-hole package configuration.

Feature Summary

• Telecommunications signal transformation with 1:1 ratio
• Through-hole mounting via PC pins
• Optimized for voice band frequencies

Applications

• Modem signal processing circuits
• Telecom line interface units
• Audio signal isolation in communication equipment

Procurement Notes

Verify the specific datasheet version when sourcing, as some distributors may list conflicting DCR values or impedance specifications. Confirm RoHS compliance status directly with the manufacturer or authorized channel partners. Ensure the through-hole package type matches the target PCB footprint requirements before finalizing procurement orders.

Selection Notes

Select this component when a 600 Ohm to 470 Ohm impedance match is required for telecom lines. The 1:1 ratio makes it suitable for direct signal coupling without voltage gain. Consider the 300Hz to 3.5kHz bandwidth for voice-grade applications. Verify that the 100mA current rating meets the circuit's operational demands.

Part Context

The TTC-264 belongs to Tamura's series of audio and signal transformers. These components are engineered for robust performance in telecommunications infrastructure. The series includes various models tailored for different impedance matching scenarios. This specific part addresses standard line interface needs in legacy and modern telecom systems.

Replacement Considerations

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