BLGE4-542R+

Balun Overview

The BLGE4-542R+ is a surface-mount LTCC transformer manufactured by Mini-Circuits. It operates within a frequency range of 4900 MHz to 5875 MHz with a nominal impedance of 50 Ohms. The device features a 1:4 turns ratio, designed for RF signal conversion between single-ended and differential configurations. Packaged in an 0805 (2012 Metric) SMD footprint, it integrates ceramic technology for stable performance in compact wireless applications.

Balun Feature Summary

• Integrates Low Temperature Co-fired Ceramic (LTCC) technology for reliable high-frequency operation
• Provides precise 1:4 impedance transformation between single-ended and differential RF signals
• Features a compact 0805 surface-mount package suitable for space-constrained designs

Balun Applications

• RF front-end circuits in wireless communication modules
• Differential amplifier input/output matching networks
• Impedance conversion stages in IoT terminal devices

Balun Procurement Notes

Verify the specific ordering suffix 'R+' indicates RoHS compliance and tape-and-reel packaging configuration as per Mini-Circuits standards. Confirm that the 0805 footprint matches your PCB land pattern requirements. Ensure the operating frequency range aligns with your system's spectral allocation before finalizing procurement.

Balun Selection Notes

Select this component when a 1:4 ratio is required for balancing single-ended signals to differential paths within the 4.9–5.875 GHz band. The LTCC construction offers thermal stability superior to standard planar transformers. Consider the 0805 size constraint against available board real estate and ensure compatibility with automated surface-mount assembly processes.

Balun Part Context

This component belongs to Mini-Circuits' broad portfolio of RF and microwave passive devices, which span from DC to 86 GHz. The BLGE series specifically addresses the need for compact baluns and transformers in modern wireless infrastructure. It complements other Mini-Circuits products like filters and amplifiers in complete signal chain designs.

Balun Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the available documentation. Consult Mini-Circuits official resources or authorized distributors for validated cross-reference data before considering alternative components.