MET-05

Audio Transformers Overview

The Tamura MET-05 is an audio transformer designed for data and voice coupling applications. It features a primary impedance of 25kCT ohms and a secondary impedance of 1kCT ohms, with a turns ratio of 5:1. The device operates within a frequency range of 300Hz to 100kHz and maintains a frequency response of ±2dB. Electrical specifications include a primary DC resistance of 1600 ohms and a secondary DC resistance of 95 ohms. It supports 500VRMS isolation voltage for 30 seconds and handles up to 30mW power. The component utilizes through-hole PC pin termination and functions within a temperature range of -20°C to 85°C.

Audio Transformers Feature Summary

• Provides electrical isolation between circuits via magnetic coupling
• Supports wideband signal transmission from 300Hz to 100kHz
• Ensures circuit safety with 500VRMS insulation capability

Audio Transformers Applications

• Audio signal coupling in communication equipment
• Voice data transmission interfaces
• Telecommunications line matching networks

Audio Transformers Procurement Notes

Verify the specific datasheet version when ordering, as manufacturer documentation may undergo revisions. Confirm that the required impedance configuration matches the 25kCT primary and 1kCT secondary specification. Ensure the PCB layout accommodates the through-hole package dimensions of 10.40mm length by 7.87mm width. Check compatibility with the operating temperature range of -20°C to 85°C for the intended environment.

Audio Transformers Selection Notes

Select this component when a 5:1 impedance transformation ratio is required for audio or voice signals. The high primary impedance suits high-impedance source applications. Verify that the physical size fits the assembly constraints. Consider the through-hole mounting style if surface mount alternatives are not suitable for the mechanical requirements.

Audio Transformers Part Context

The MET-05 belongs to the MET series of audio transformers manufactured by Tamura Corporation. This series focuses on data and voice coupling solutions. The component is distinct from other MET models like the MET-59, which offers different impedance characteristics. It serves as a specialized passive component for signal integrity in analog audio paths.

Audio Transformers Replacement Considerations

The Triad Magnetics SP-13 is documented as a similar substitute part number. Verify that the SP-13 meets the specific impedance and frequency requirements before implementation.