A-55J

Audio Transformers Overview

The Triad Magnetics A-55J is a shielded audio impedance matching transformer designed for signal applications. It features a primary impedance of 15,000 ohms and secondary impedances of 600, 250, and 75 ohms, providing a 5.0:1 ratio. The unit supports a maximum power handling of 100mW and operates within a frequency range of 30Hz to 15kHz. Constructed for chassis mounting via a single-hole design, it facilitates rotation to minimize hum interference.

Audio Transformers Feature Summary

• Shielded construction ensures signal integrity and reduces electromagnetic interference
• Single-hole mounting design allows for rotational adjustment to maximize hum reduction
• Impedance matching capability provides warm signal characteristics suitable for audio applications

Audio Transformers Applications

• Audio impedance matching circuits
• Signal transformers in audio equipment
• Chassis-mounted audio interface designs

Audio Transformers Procurement Notes

Verify the specific datasheet version when sourcing, as manufacturer documentation may vary across distributors. Confirm that the component matches the required 15k primary impedance and 100mW power rating for your application. Ensure the chassis mount hole dimensions align with your enclosure specifications before finalizing procurement orders.

Audio Transformers Selection Notes

Select this component when a shielded audio transformer with a 5.0:1 impedance ratio is required. The single-hole mounting feature is critical if rotational alignment for hum reduction is necessary in the assembly. Verify that the 30Hz to 15kHz frequency response meets the bandwidth requirements of the target audio system.

Audio Transformers Part Context

The A-55J belongs to the J Series from Triad Magnetics, which specializes in shielded audio impedance matching transformers. This series is engineered to deliver warm signal quality while incorporating physical design elements like single-hole mounting to address common audio interference issues such as hum.