A-68J

Audio Transformers Overview

The Triad Magnetics A-68J is a J Series audio transformer designed for impedance matching applications. It features a primary DC resistance of 1723 Ohms and supports a power rating of 100 mW with a maximum current of 4 mA. The device provides a 15,000 Ohm center-tapped primary to a secondary configuration of 600 Ohm center-tapped or 150/150 Ohm, yielding an impedance ratio of 5.0:3. It utilizes chassis mounting and is classified under signal transformers.

Audio Transformers Feature Summary

• Provides precise impedance transformation between high-impedance primary circuits and low-impedance secondary loads
• Features a center-tapped primary winding configuration for balanced signal handling
• Engineered for chassis mounting to ensure stable physical installation in audio equipment

Audio Transformers Applications

• Audio signal impedance matching networks
• Balanced line interfacing in professional audio systems
• Signal transformer stages requiring specific impedance ratios

Audio Transformers Procurement Notes

Verify the exact secondary configuration required, as the model supports both 600 Ohm center-tapped and 150/150 Ohm split secondary options. Confirm that the 100 mW power rating and 4 mA current limit align with the target circuit's operational parameters. Ensure chassis mounting hardware is compatible with the specified form factor before finalizing procurement.

Audio Transformers Selection Notes

Select this component when a 5.0:3 impedance ratio is necessary between a 15k Ohm source and lower impedance loads. The 1723 Ohm primary DC resistance must be accounted for in biasing calculations. This transformer is suitable for low-power audio signals where chassis stability is prioritized over PCB integration.

Audio Transformers Part Context

The A-68J belongs to the Triad Magnetics J Series, which specializes in audio transformers and signal transformers. This series focuses on providing reliable impedance matching solutions for audio applications, distinguishing itself from general-purpose inductors or common mode chokes found in other product lines.

Audio Transformers Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing chassis mounts and wiring configurations if considering alternative models.

Audio Transformers FAQ

What is the primary DC resistance of the A-68J?

The primary DC resistance is 1723 Ohms.

Does the A-68J have a center-tapped primary?

Yes, the primary winding is 15,000 Ohms with a center tap (15KCT).