AMI-21A-3-1

Overview

The Altran Magnetics AMI-21A-3-1 is a miniature audio transformer designed for balanced line applications. It features a wide frequency response and low insertion loss, ensuring high-fidelity signal transmission. The unit utilizes a compact epoxy-sealed case to protect internal windings from environmental factors. Electrical specifications include a turns ratio of 1:1 and an impedance matching capability suitable for professional audio equipment interfaces.

Feature Summary

• Provides galvanic isolation between balanced audio circuits
• Ensures common-mode noise rejection for clean signal paths
• Utilizes robust epoxy encapsulation for mechanical stability

Applications

• Professional audio mixing consoles
• Microphone preamplifier inputs
• Balanced line interconnects in studio environments

Procurement Notes

Verify the specific suffix codes against manufacturer documentation to confirm pinout configuration and impedance ratings. Ensure compatibility with existing circuit board footprints before integration. Cross-reference datasheet revisions to validate current manufacturing standards and material compliance requirements.

Selection Notes

Evaluate the required bandwidth and harmonic distortion limits against the component's published frequency response curve. Confirm that the physical dimensions fit within the designated enclosure space. Assess thermal management needs based on expected continuous power handling capabilities in the target application environment.

Part Context

This component belongs to Altran Magnetics' series of miniature audio transformers. These units are engineered for high reliability in demanding acoustic environments. The design prioritizes signal integrity while maintaining a small form factor suitable for dense electronic assemblies.

Replacement Considerations

Consult official substitution lists for equivalent models with identical electrical characteristics. Verify pin-to-pin compatibility to avoid redesigning printed circuit boards. Ensure replacement units meet the same regulatory certifications as the original specification.