CX2043LNL

Balun Overview

The CX2043LNL is an RF Balun manufactured by Pulse Electronics, designed for high-performance applications in the 1MHz to 1GHz frequency range. It features a 1.5:1 impedance ratio and utilizes a 5-SMD module package for surface mount installation. The component supports operation across a temperature range of -40°C to +85°C. It is RoHS compliant and classified under ECCN EAR99 with MSL Level 1. The device is intended for use in LAN environments compatible with 1G, 2.5G, and 5G standards.

Balun Feature Summary

• Provides RF balancing functionality within a compact 5-SMD module footprint
• Operates effectively across a wide frequency spectrum from 1MHz to 1GHz
• Supports integration into LAN systems compatible with 1G, 2.5G, and 5G standards

Balun Applications

• 100Base-TX network interfaces
• LAN systems supporting 1G speeds
• LAN systems supporting 2.5G speeds
• LAN systems supporting 5G speeds

Balun Procurement Notes

Verify that the specific application design accounts for the lack of DC isolation between primary and secondary windings, as noted in official documentation for this transformer configuration. Ensure compliance with RoHS3 specifications and confirm that the 5-SMD package dimensions align with the target PCB layout constraints prior to finalizing procurement orders.

Balun Selection Notes

Select this component when a 1.5:1 impedance transformation ratio is required for frequencies up to 1GHz. Consider the 5-SMD package size for space-constrained designs. Verify thermal requirements against the -40°C to +85°C operating range. Note that this part does not provide DC isolation between windings, which may influence circuit topology decisions compared to isolated transformer options.

Balun Part Context

The CX2043LNL belongs to the CX series of RF transformers from Pulse Electronics. This series includes variants such as CX2038LNL, CX2039LNL, CX2041NLT, CX2044LNL, CX2045LNL, and CX2047LNL. These components are generally categorized under Audio & Signal Transformers and are designed for various signal conversion needs in electronic circuits.

Balun Replacement Considerations

Official substitute part numbers are not explicitly confirmed in the provided source material.