TTC-5014

Overview

The Tamura TTC-5014 is a telecommunications audio transformer designed for modem and voice line applications. It features a 600-ohm primary impedance and a 348-ohm secondary impedance, providing a 1:1 turns ratio. The component utilizes through-hole mounting with four terminals and PC pins for secure PCB integration. Electrical specifications include a primary DC resistance of 152 ohms and a secondary DC resistance of 151 ohms. It supports an operating frequency range from 200 Hz to 4 kHz with a typical insertion loss of 3.25 dB. The unit is rated for 1500 Vrms isolation voltage.

Feature Summary

• Provides galvanic isolation between voice and modem lines
• Supports standard telephone network impedance matching
• Designed for robust through-hole PCB assembly

Applications

• Modem interface circuits
• Voice line termination
• Telecommunications equipment input/output stages

Procurement Notes

Verify the specific datasheet version to confirm mechanical dimensions and pinout configurations before finalizing the design. Ensure that the supplier provides original manufacturer documentation to validate compliance with RoHS standards and material safety data sheets. Cross-reference the part number with authorized distributors to confirm current availability status and lead times.

Selection Notes

Select this component when a 600-ohm to 348-ohm impedance transformation is required for analog signal integrity in telecom systems. Consider the 1500 Vrms isolation rating for safety requirements. Evaluate the physical footprint constraints against the through-hole package dimensions to ensure compatibility with the target printed circuit board layout and manufacturing processes.

Part Context

This component belongs to Tamura's portfolio of audio and signal transformers, specifically engineered for telecommunication infrastructure. These devices are critical for maintaining signal quality and electrical safety in legacy and modern telephone networks. The series typically includes variants with different impedance ratios to accommodate various international line standards.

Replacement Considerations

Consult official substitution lists or equivalent product catalogs from Tamura and other manufacturers. Verify that any alternative part matches the 600/348 ohm impedance ratio, 1:1 turns ratio, and 1500 Vrms isolation rating. Confirm mechanical compatibility regarding terminal count and through-hole spacing.