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MET-33 is listed in the Audio Transformers range at ChipApex. The manufacturer field lists Tamura. Its product description is AUDIO TRANSFORMER. Review the specifications below when checking this part for your BOM.
Audio Transformers specifications for MET-33
- Description：AUDIO TRANSFORMER
- Series：-
- Mfr：Tamura
- Package：Bulk
- Mounting Type：Through Hole
- Size / Dimension：0.410" L x 0.310" W (10.41mm x 7.87mm)
- Height - Seated (Max)：0.465" (11.80mm)
- Termination Style：PC Pin
- Turns Ratio - Primary:Secondary：1.55:1
- Impedance - Primary (Ohms)：600CT
- Impedance - Secondary (Ohms)：250CT
- DC Resistance (DCR) - Primary：70Ohm
- DC Resistance (DCR) - Secondary：35Ohm
- Transformer Type：Audio Coupling
- Frequency Range：300Hz ~ 100kHz
- Frequency Response：±2dB
- Voltage - Isolation：500V
- Insertion Loss：-
- Return Loss：-
- Power Level：50mW
- Operating Temperature：-20°C ~ 85°C
- Approval Agency：-
Audio Transformers datasheet and documents for MET-33
Audio Transformers Overview
The Tamura MET-33 is a through-hole audio transformer designed for coupling applications. It features a primary impedance of 600 Ohms center-tapped and a secondary impedance of 250 Ohms center-tapped, providing an impedance ratio of 1.55:1. The device operates within a frequency range of 300Hz to 100kHz. It offers an isolation voltage of 500V and is encapsulated for protection.
Audio Transformers Feature Summary
- Through-hole mounting construction
- Encapsulated design for environmental protection
- Center-tapped primary and secondary windings
Audio Transformers Applications
- Audio signal coupling
- Voice circuit interfacing
- Data transmission line balancing
Audio Transformers Procurement Notes
Verify the specific datasheet version for the MET-33 to confirm exact pinout configurations and mechanical dimensions before integration. Ensure that the operating environment remains within the specified temperature and voltage limits to maintain performance integrity and safety compliance during long-term deployment.
Audio Transformers Selection Notes
Select this component when a 600-ohm to 250-ohm impedance transformation is required in audio or voice circuits. The center-tapped configuration supports balanced line applications. Confirm that the 500V isolation rating meets the system's safety requirements and that the through-hole package fits the target PCB layout constraints.
Audio Transformers Part Context
The MET-33 belongs to Tamura's MET series of audio transformers. These components are engineered for reliable signal transfer in telecommunications and audio equipment. The series emphasizes compact form factors with robust electrical characteristics suitable for standard industrial and commercial electronic assemblies.
Audio Transformers Replacement Considerations
Cross-reference with MET-39 for similar through-hole audio transformer specifications. Verify impedance ratios and physical footprint compatibility before substitution to ensure circuit performance remains unaffected.
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