BALF-NRG-02D3

Balun Overview

The BALF-NRG-02D3 is an ultra-miniature balun designed for the 2.4GHz to 2.5GHz frequency range. It features a nominal 50Ω input impedance and provides a conjugate match specifically customized for STMicroelectronics BlueNRG transceivers. The device integrates a matching network and harmonics filter, utilizing IPD technology on a non-conductive glass substrate. Key electrical parameters include a maximum insertion loss of 1.85dB, a minimum operating frequency of 2400MHz, and a maximum operating frequency of 2.5GHz. It operates within a temperature range of -40°C to 105°C and is available in a CSPG package with four pins.

Balun Feature Summary

• Integrates matching network and harmonics filter
• Customized conjugate match for BlueNRG transceiver
• Utilizes IPD technology on non-conductive glass substrate

Balun Applications

• Personal electronics
• Industrial applications
• Automotive applications

Balun Procurement Notes

Verify the specific part number suffix against official STMicroelectronics documentation to ensure compatibility with the intended BlueNRG series. Confirm that the CSPG package type meets the spatial constraints of the target design. Cross-reference the operating temperature range requirements with the specified -40°C to 105°C limits. Ensure the RF performance specifications align with the system's signal integrity requirements before finalizing procurement orders.

Balun Selection Notes

Select this component when designing systems based on STMicroelectronics BlueNRG Bluetooth Low Energy chips. The integrated harmonic filter and matching network simplify the RF front-end design by reducing external component count. Consider the ultra-miniature form factor for space-constrained portable devices. Verify that the 50Ω input impedance matches the source requirements and that the conjugate match optimizes power transfer to the specific transceiver model.

Balun Part Context

This balun belongs to the BALF-NRG series, which are specialized passive components developed for low-energy wireless connectivity solutions. It complements STMicroelectronics' BlueNRG system-on-chip family, providing essential RF interface functionality. The use of IPD technology ensures high performance in a compact footprint, supporting the trend toward miniaturization in smart connected hardware applications across various sectors.

Balun Replacement Considerations

Public confirmed substitute part numbers: BALF-NRG-01D3.