MET-40

Overview

The Tamura MET-40 is a through-hole audio transformer designed for signal coupling applications. It features a primary impedance of 320CT ohms and a secondary impedance of 3.2 ohms, with a turns ratio of 10:1. The device operates within a frequency range of 300Hz to 100kHz. Electrical characteristics include a primary DC resistance of 35 ohms and a secondary DC resistance of 0.7 ohms. The component utilizes PC pin termination for mounting.

Feature Summary

• Provides electrical isolation and impedance matching between circuit stages
• Supports high-frequency audio signal transmission within specified bandwidth
• Utilizes through-hole mounting technology for secure PCB integration

Applications

• Audio signal coupling in electronic circuits
• Impedance transformation between amplifier stages
• Telecom signal processing modules

Procurement Notes

Verify RoHS compliance status prior to procurement as the MET-40 may not be compliant. Confirm that the specific order quantity aligns with distributor packaging standards. Ensure the selected variant matches the required 10:1 turns ratio and impedance specifications for the target application design.

Selection Notes

Select this component when a 10:1 step-down ratio is required for audio or low-frequency signal paths. The 320CT primary impedance suits specific driver requirements. Verify that the 300Hz lower frequency limit meets the system's bandwidth needs. Ensure through-hole assembly capabilities are available in the manufacturing process.

Part Context

The MET-40 belongs to Tamura's audio transformer series, which focuses on signal integrity and impedance matching. This model serves as a passive component for bridging different circuit impedances while maintaining signal fidelity across the designated frequency spectrum.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.