TTC-5037

Overview

The Tamura TTC-5037 is a surface-mount audio transformer designed for data and signal coupling applications. It features a 1:1 turns ratio with a primary impedance of 600 ohms and a secondary impedance of 530 ohms. The device operates within a frequency range of 200Hz to 4kHz, maintaining a frequency response of ±0.4dB. Key electrical specifications include a maximum insertion loss of 2dB at 2kHz and a minimum return loss of 18dB across the operating band. The unit provides 1875VRMS isolation for one second and supports a DC resistance of 90 ohms on both primary and secondary sides. It functions reliably between -20°C and 85°C.

Feature Summary

• Surface mount construction optimized for high-density PCB integration
• Certified safety compliance with UL60950 and EN60950 standards
• High isolation voltage rating of 1875VRMS for circuit protection

Applications

• Modem line transformers
• Voice communication circuits
• Data signal coupling

Procurement Notes

Verify component authenticity by inspecting markings for TTC-5037H, TAMURA branding, date code, and country of origin. Confirm the presence of the 'H' suffix indicating safety-approved family classification. Ensure packaging matches reel specifications for surface mount processing. Cross-reference datasheet parameters against received units to validate impedance and isolation ratings prior to assembly.

Selection Notes

Select this component when a 1:1 impedance matching ratio is required for modem or voice lines. The 600-ohm primary side aligns with standard telecommunication interfaces. Consider the physical dimensions of 9.60mm x 12.50mm for board space constraints. Verify that the 200Hz to 4kHz bandwidth meets the specific frequency requirements of the target application without additional filtering.

Part Context

This part belongs to the Tamura TTC series of audio and signal transformers. It is engineered for telecommunications and data transmission environments where reliable signal integrity is critical. The design emphasizes compactness and robust electrical performance within a standardized surface-mount footprint suitable for automated manufacturing processes.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official Tamura catalogs for direct replacements or cross-reference similar impedance ratios from other manufacturers if necessary.

FAQ

What does the 'H' designation indicate in TTC-5037H?

The 'H' suffix designates the Safety Approved family classification, confirming compliance with UL60950 and EN60950 standards.

What is the maximum insertion loss specification?

The maximum insertion loss is 2dB, measured at a frequency of 2kHz.