A-57J

Audio Transformers Overview

The Triad Magnetics A-57J is a shielded audio impedance matching transformer designed for signal integrity. It features a 1:1 turns ratio with primary and secondary impedances of 600, 250, and 50 ohms. The unit supports a frequency range of 30Hz to 30kHz and handles a power level of 50mW. It utilizes chassis mounting via a single-hole configuration.

Audio Transformers Feature Summary

• Shielded design ensures warm signal quality and minimizes interference
• Single-hole mounting allows rotation for maximum hum reduction
• Impedance matching capability across standard audio levels

Audio Transformers Applications

• Audio impedance matching circuits
• Signal isolation in audio systems
• Hum reduction applications requiring rotational adjustment

Audio Transformers Procurement Notes

Verify availability status as some distributors list this component as discontinued. Confirm the specific impedance configuration matches the target circuit requirements before ordering. Ensure chassis mounting hardware compatibility is assessed for the intended installation environment.

Audio Transformers Selection Notes

Select this transformer when a 1:1 ratio is required for 600, 250, or 50 ohm audio lines. The shielded construction is critical for noise-sensitive environments. Consider the rotational mounting feature if hum mitigation is a priority in the system layout.

Audio Transformers Part Context

This component belongs to Triad Magnetics' J Series of audio transformers. The series is characterized by shielded designs intended to provide warm signal transmission while offering mechanical flexibility through single-hole mounting options for optimal orientation during assembly.

Audio Transformers Replacement Considerations

No direct substitute part numbers are confirmed in public documentation. Alternative solutions may require custom winding specifications to match the 1:1 ratio and specific impedance values.