BALF-NRG-02J5

Balun Overview

The BALF-NRG-02J5 is a 50 Ω ultra-thin balun with an integrated harmonic filter and conjugate match, designed specifically for the ST BLUENRG134. Operating at 2.45 GHz, this flip-chip device features a footprint of less than 1.2 mm² in an extra-low profile package. It integrates matching network and harmonics filter functions, simplifying RF complexity while providing an optimized link budget.

Balun Feature Summary

• Integrates matching network and harmonics filter within an ultraminiature form factor
• Customized impedance matching specifically for the BLUENRG-134 transceiver
• Provides optimized link budget by simplifying RF circuit design complexity

Balun Applications

• Bluetooth Low Energy (BLE) modules using BlueNRG-134
• IoT sensor nodes requiring minimal PCB area
• Wireless peripheral devices with strict height constraints

Balun Procurement Notes

Verify component status as Not Recommended for New Designs (NRND). Confirm compatibility with existing BlueNRG-134 layouts before procurement. Check latest manufacturer documentation for any lifecycle updates or alternative recommendations.

Balun Selection Notes

Select this component only when designing around the STBlueNRG-134 series. The customized impedance match eliminates external matching components. Ensure flip-chip assembly capabilities are available due to the specific package type.

Balun Part Context

This balun belongs to STMicroelectronics' passive component portfolio for wireless connectivity. It serves as a critical interface between the antenna and the BlueNRG-134 SoC, ensuring signal integrity and regulatory compliance through integrated filtering.

Balun Replacement Considerations

No direct public substitutes are documented. As an NRND part, evaluate long-term supply risks. Consider redesigning with newer BlueNRG variants if future production is required.