MET-28

$10.19

Description：AUDIO XFMR 1K / 50 TH
Series：MET
Mfr：Tamura
Package：Tube

SKU:d88272e5cfa3 Category: Audio Transformers Brand: Tamura

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Product introduction

MET-28 is listed in the Audio Transformers range at ChipApex. The manufacturer field lists Tamura. Its product description is AUDIO XFMR 1K / 50 TH. Review the specifications below when checking this part for your BOM.

Audio Transformers specifications for MET-28

Description：AUDIO XFMR 1K / 50 TH
Series：MET
Mfr：Tamura
Package：Tube
Mounting Type：Through Hole
Size / Dimension：0.409" L x 0.310" W (10.40mm x 7.87mm)
Height - Seated (Max)：0.465" (11.80mm)
Termination Style：PC Pin
Turns Ratio - Primary:Secondary：4.47:1
Impedance - Primary (Ohms)：1k
Impedance - Secondary (Ohms)：50
DC Resistance (DCR) - Primary：110Ohm
DC Resistance (DCR) - Secondary：8Ohm
Transformer Type：Data/Voice Coupling
Frequency Range：300Hz ~ 100kHz
Frequency Response：±2dB
Voltage - Isolation：500VRMS @ 30 Seconds
Insertion Loss：-
Return Loss：-
Power Level：50mW
Operating Temperature：-20°C ~ 85°C
Approval Agency：-

Audio Transformers datasheet and documents for MET-28

MET-28

Audio Transformers Overview

The Tamura MET-28 is an audio and signal transformer designed for data and voice coupling applications. It features a primary impedance of 1k Ohms and a secondary impedance of 50 Ohms, resulting in a turns ratio of 4.47:1. The component supports a frequency range of 300Hz to 100kHz with a tolerance of ±2dB. Electrical specifications include a primary DC resistance of 110 Ohms and a secondary DC resistance of 8 Ohms. It offers 500VRMS isolation at 30 seconds and operates with a current rating of 3mA. The device utilizes through-hole mounting with PC pin termination.

Audio Transformers Feature Summary

Provides galvanic isolation for data and voice signal transmission
Supports wideband frequency response from 300Hz to 100kHz
Features robust 500VRMS insulation capability for safety
Designed for reliable through-hole PCB integration

Audio Transformers Applications

Voice communication systems
Data line coupling circuits
Audio signal processing interfaces
Telecommunications equipment

Audio Transformers Procurement Notes

Verify the specific manufacturer datasheet for the MET-28 to confirm compliance with required isolation standards and frequency response tolerances. Ensure that the through-hole package dimensions align with the target printed circuit board layout. Cross-reference the DC resistance values against system design requirements to prevent signal degradation or excessive power loss in the coupling path.

Audio Transformers Selection Notes

Select this component when a 1k:50 Ohm impedance transformation is required for audio or data signals. Consider the 300Hz to 100kHz bandwidth limitation for high-fidelity applications. Evaluate the 3mA current rating to ensure it meets the operational load of the connected circuitry without saturation. Confirm that the physical size fits within the available space constraints on the assembly.

Audio Transformers Part Context

The MET-28 belongs to Tamura's MET series of audio transformers, which are specialized for coupling applications. This series provides standardized impedance matching solutions for various signal types. The MET-28 specifically addresses scenarios requiring moderate voltage isolation and precise impedance ratios between primary and secondary windings.