TRS1-182-75-3+

Overview

The TRS1-182-75-3+ is a Mini-Circuits RF balun transformer designed for broadband applications. It operates within a frequency range of 10 MHz to 1.8 GHz, providing a 1:1 impedance transformation ratio. The component features a primary impedance of 50 Ohms and a secondary impedance of 75 Ohms, facilitating interface between standard RF systems and 75-Ohm transmission lines. Housed in an unshielded 4-SMD surface-mount module, it measures 6.1 mm in length, 4.32 mm in width, and 4.06 mm in height. The device supports a power rating of 1 W and is suitable for both tin/lead and RoHS-compliant soldering processes.

Feature Summary

• Provides balanced-to-unbalanced signal conversion with a 1:1 core and wire transformer architecture
• Supports broadband operation from 10 MHz to 1.8 GHz for versatile RF application
• Facilitates impedance matching between 50-Ohm and 75-Ohm system components

Applications

• DOCSIS 4.0 reference designs and cable modem implementations
• CATV (Cable Television) system integration
• Broadband access network equipment

Procurement Notes

Verify the specific datasheet revision and electrical performance curves prior to integration, as Mini-Circuits may update typical performance data over time. Confirm that the unshielded package style aligns with the electromagnetic interference requirements of the target circuit layout. Ensure that the 1 W power rating is sufficient for the intended signal levels to prevent thermal issues during continuous operation.

Selection Notes

Select this component when interfacing 50-Ohm RF sources with 75-Ohm loads across a wide bandwidth up to 1.8 GHz. The choice is appropriate for space-constrained designs requiring a small SMD footprint. Consider the lack of shielding when placing the component near sensitive circuits to avoid potential coupling issues.

Part Context

This transformer belongs to Mini-Circuits' TRS series of core and wire transformers. These components are engineered for high-reliability RF signal processing in communication infrastructure. The series offers various impedance ratios and frequency ranges to support diverse analog and digital transmission standards.

Replacement Considerations

Consult official Mini-Circuits documentation for direct substitutes or alternative impedance ratios. Cross-reference specifications such as frequency range and physical dimensions to ensure compatibility with existing board layouts.