TY-403P

Overview

The Triad Magnetics TY-403P is an audio transformer designed for data and voice coupling applications. It features a primary impedance of 600 Ohms and a split secondary impedance of 600:600 Ohms with center tap. The unit supports a frequency range of 300 Hz to 3.5 kHz and provides insulation voltage of 1.5 kV. Rated for a maximum DC current of 90 mA, it utilizes radial pin terminals for through-hole mounting. Physical dimensions are 1.25 inches in length, 0.815 inches in width, and 0.53 inches in height.

Feature Summary

• Provides signal isolation for data and voice coupling tasks
• Features a split secondary winding configuration for balanced connections
• Complies with FCC Part 68 requirements for telecommunications equipment

Applications

• Data line coupling
• Voice circuit coupling
• Telecommunications interface isolation

Procurement Notes

Verify the specific suffix designation matches the required secondary configuration, as variations exist within the series. Confirm that the through-hole package style aligns with the target PCB layout. Ensure the operating temperature range of -20°C to +85°C meets the environmental constraints of the final assembly. Cross-reference the manufacturer part number against the latest datasheet to confirm current production status.

Selection Notes

Select this component when a 600 Ohm impedance match is required for audio or data signals. The split secondary design allows for flexible connection options in balanced circuits. Consider the physical size constraints, as the unit measures 1.25 inches by 0.815 inches. Verify that the 90 mA current rating is sufficient for the intended signal path without saturation.

Part Context

This model belongs to the TY series of audio transformers manufactured by Triad Magnetics. These components are specifically engineered for telecommunications and data transmission environments. The series offers various impedance configurations to suit different line matching requirements while maintaining strict adherence to regulatory standards for electronic communication devices.

Replacement Considerations

Direct substitutes include the TY-402P, which shares similar impedance characteristics but lacks the split secondary configuration.