MET-31

Audio Transformers Overview

The Tamura MET-31 is a through-hole audio transformer designed for data and voice coupling applications. It features a 1:1 turns ratio with primary and secondary impedances of 600CT ohms each. The device operates within a frequency range of 300Hz to 100kHz, maintaining a frequency response of ±2dB. It supports a power level of 50mW and provides isolation voltage of 1000VRMS for 30 seconds. The unit utilizes PC pin termination and functions within a temperature range of -20°C to 85°C.

Audio Transformers Feature Summary

• Provides balanced signal coupling with center-tapped primary and secondary windings for noise rejection in audio circuits.
• Ensures electrical safety and circuit isolation through high-voltage dielectric strength testing.
• Supports wideband audio transmission with flat frequency response across the specified operational bandwidth.

Audio Transformers Applications

• Professional audio equipment signal balancing
• Telecommunications voice line interfacing
• Data transmission coupling in industrial control systems

Audio Transformers Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number with official Tamura documentation. Confirm that the received units match the specified through-hole package dimensions and terminal style. Ensure compliance with RoHS standards and check for any specific handling requirements related to moisture sensitivity during storage and assembly processes.

Audio Transformers Selection Notes

Select this component when a 1:1 impedance matching ratio is required between 600-ohm lines. Consider the physical dimensions and through-hole mounting constraints for PCB layout. Evaluate the thermal operating range against environmental conditions. Verify that the frequency response characteristics meet the specific bandwidth requirements of the target audio or data application.

Audio Transformers Part Context

The MET-31 belongs to the MET series of audio transformers manufactured by Tamura. This series focuses on providing reliable signal coupling solutions for professional audio and telecommunications industries. The component represents a standard solution for balanced line interfacing where common-mode noise rejection is critical for signal integrity.

Audio Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official manufacturer resources for potential equivalents if direct replacement is necessary.