TY-402P

Overview

The Triad Magnetics TY-402P is a single-channel audio signal transformer designed for data and voice coupling applications. It features a radial pin terminal end type with an unshielded construction. The device operates within a frequency range of 300 Hz to 3.5 kHz and supports a maximum DC current of 90 mA. Electrical specifications include primary and secondary impedances of 600 Ohms each, with an insulation voltage rating of 1.5 kV. The component measures 1.25 inches in length, 0.815 inches in width, and 0.53 inches in height, suitable for standard through-hole mounting.

Feature Summary

• Provides galvanic isolation between circuit stages while maintaining signal integrity for audio frequencies.
• Facilitates impedance matching between 600-ohm source and load circuits for balanced line applications.
• Supports direct current bias up to 90 mA without saturation, enabling use in active or passive hybrid configurations.

Applications

• Data and voice signal coupling in telecommunications equipment
• Impedance matching for balanced audio lines
• Isolation in FCC Part 68 compliant telephone interfaces

Procurement Notes

Verify the specific manufacturer part number against official Triad Magnetics documentation to ensure compatibility with design requirements. Confirm that the radial pin terminal configuration matches the PCB layout. Check regulatory compliance status, such as RoHS details, if required by the target market. Ensure the operating temperature range of -20 C to +85 C aligns with the environmental conditions of the final assembly.

Selection Notes

Select this component when a 600-ohm to 600-ohm transformation ratio is required for audio or data signals. Consider the physical dimensions and radial lead style for mechanical fit within the enclosure. Evaluate the 1.5 kV insulation voltage to ensure adequate isolation safety margins for the application. Verify that the 90 mA DC current rating meets the bias requirements of the connected circuitry.

Part Context

The TY-402P belongs to the TY series of audio transformers manufactured by Triad Magnetics. This series is engineered for general-purpose audio and signal processing tasks. The component serves as a passive magnetic element for balancing, bridging, and hybrid functions in communication systems. It represents a standard solution for legacy and modern telephony interface designs requiring reliable signal transfer.

Replacement Considerations

Consult official Triad Magnetics cross-reference lists for verified substitute part numbers. Ensure any replacement maintains identical impedance ratios, frequency response, and physical footprint. Do not assume interchangeability based on generic specifications alone; verify datasheet alignment for critical parameters like insulation voltage and DC resistance.