B4859A53

Balun Overview

The B4859A53 is an RF balun manufactured by TTM Technologies, Inc., designed for operation within the 4.8GHz to 5.9GHz frequency range. It provides impedance transformation between unbalanced and balanced lines with values of 50 ohms and 100 ohms respectively. The component utilizes a 0603 (1608 metric) surface-mount package. Key electrical specifications include a maximum insertion loss of 0.7dB, a minimum return loss of 15dB, and a phase difference of 5 degrees.

Balun Feature Summary

• Provides conversion between unbalanced and balanced signal lines for RF applications
• Designed for differential inputs and outputs on modern chipsets
• Constructed using ceramic-filled PTFE composites for electrical and mechanical stability

Balun Applications

• Differential input/output connections in wireless communication systems
• RF front-end modules operating in the 4.8-5.9 GHz band
• Modern chipset integration requiring compact balun solutions

Balun Procurement Notes

Verify current availability status as the part may be discontinued or subject to limited supply. Confirm that the 0603 package dimensions align with PCB layout requirements. Ensure compatibility with the target frequency range and impedance specifications before finalizing procurement decisions.

Balun Selection Notes

Select this component when a compact solution is required for balancing signals in high-frequency circuits. The 0603 footprint offers space efficiency compared to larger packages. Consider the specific insertion loss and return loss tolerances required by the system design to ensure signal integrity is maintained within acceptable limits.

Balun Part Context

This component belongs to the Xinger series from TTM Technologies, which specializes in ultra-small, low-profile transformers. These components are engineered for use in 5G applications and other advanced wireless technologies where miniaturization and performance stability are critical design constraints.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify if alternative baluns from the same manufacturer offer compatible electrical characteristics and physical dimensions.