BD4859N50150AHF

Balun Overview

The BD4859N50150AHF is an ultra-low profile RF balun manufactured by TTM Technologies under the Xinger series. It operates within a frequency range of 4.8 GHz to 5.9 GHz, providing signal conditioning between unbalanced and balanced lines. The component features a 50 Ohm unbalanced impedance and a 150 Ohm balanced impedance. It exhibits a maximum insertion loss of 0.4 dB and a minimum return loss of 17 dB. The phase difference is specified at 4 degrees. Packaged in a 0404 (1010 metric) surface-mount footprint, it supports board mounting and functions within a temperature range of -55°C to +85°C.

Balun Feature Summary

• Ultra-low profile design for compact PCB integration
• High isolation with 17 dB minimum return loss
• Low insertion loss of 0.4 dB for efficient signal transmission
• Precise phase balance with 4-degree differential

Balun Applications

• Wireless local area network (WLAN) transceivers
• Bluetooth low energy (BLE) modules
• Zigbee and other IEEE 802.15.4 based devices
• ISM band communication systems

Balun Procurement Notes

Verify the specific impedance configuration matches the circuit design requirements before procurement. Confirm that the 0404 package dimensions align with the available board space and solder mask definitions. Ensure that the operating temperature range meets the environmental specifications of the final application. Check for RoHS compliance documentation if required by regional regulations. Validate the supplier's authenticity through authorized distribution channels.

Balun Selection Notes

Select this component when a 50-to-150 Ohm transformation is required in the 4.8 to 5.9 GHz range. Consider the 0404 footprint constraints during layout planning. Evaluate the 0.4 dB insertion loss impact on overall system gain. Compare against alternative baluns if different impedance ratios or wider bandwidths are needed. Assess thermal management capabilities given the small form factor.

Balun Part Context

This part belongs to the Xinger series of ultra-low profile baluns from TTM Technologies. It is designed for high-volume manufacturing in consumer electronics and wireless communication devices. The series emphasizes minimal size and consistent electrical performance across the specified frequency bands. Similar parts in the lineup may offer different impedance ratios or frequency ranges.

Balun Replacement Considerations

BD4859N50100AHF offers similar frequency coverage but uses a 100 Ohm balanced impedance instead of 150 Ohms.