748421551

Balun Overview

The Würth Elektronik 748421551 is an RF Balun from the WE-BAL series, designed for surface mount applications in the 0805 (2012 Metric) package. It operates within a frequency range of 5.15GHz to 5.875GHz. The component provides impedance transformation between 50 Ohm unbalanced and 100 Ohm balanced ports. Key electrical specifications include a maximum insertion loss of 1.0dB and a phase difference of 180° ±10°. It is RoHS compliant and classified under ECCN EAR99.

Balun Feature Summary

• Multilayer LC-Balun technology for compact surface mount integration
• Balanced-to-unbalanced signal conversion with 180-degree phase shift
• Impedance matching between 50 Ohm and 100 Ohm systems

Balun Applications

• Wireless LAN modules operating in the 5GHz band
• RF front-end circuits requiring balanced-to-unbalanced conversion
• Signal conditioning in high-frequency communication devices

Balun Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, such as tape and reel or cut tape, as these affect handling procedures. Confirm that the application environment does not exceed the specified temperature ratings. Ensure compatibility with standard SMT reflow profiles during assembly planning.

Balun Selection Notes

Select this component when a small form factor is required for 5GHz RF applications. The 0805 package suits space-constrained designs. Verify that the 1.0dB insertion loss meets system budget requirements. Consider the 180-degree phase tolerance for differential signal integrity needs.

Balun Part Context

This part belongs to the WE-BAL series of chip baluns manufactured by Würth Elektronik. These components utilize multilayer LC technology to provide efficient RF signal conversion. The series is designed for modern electronics requiring miniaturization and reliable performance in wireless communication standards.

Balun Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-reference with other manufacturers' baluns only if they match the exact frequency range, impedance values, and package dimensions.