DXW21BN7511SL07

Balun Overview

The DXW21BN7511SL07 is a surface-mount RF balun transformer manufactured by Murata Electronics. It operates within a frequency range of 50 MHz to 1.8 GHz, providing impedance transformation between unbalanced and balanced circuits with 75 Ohm terminals on both sides. The device features a maximum insertion loss of 1.5 dB and a maximum DC resistance of 590 mOhms. It utilizes a 4-pad horizontal package measuring 2 mm x 1.2 mm x 1.2 mm (0805 metric). The component supports an operating temperature range from -40°C to +85°C and complies with RoHS3 standards.

Balun Feature Summary

• Converts single-ended signals to differential signals across a wide bandwidth
• Maintains signal integrity with low insertion loss specifications
• Provides compact footprint suitable for space-constrained PCB layouts

Balun Applications

• RF front-end modules in wireless communication devices
• Antenna interface circuits requiring impedance matching
• Signal processing systems operating in the VHF/UHF bands

Balun Procurement Notes

Verify that the specific suffix '07' matches the required packaging configuration, as standard variants may differ in reel or cut-tape availability. Confirm that the 590 mOhms DC resistance aligns with system power budget requirements. Ensure the 1.5 dB insertion loss limit meets the link budget constraints for the target application frequency range. Check compliance documentation for RoHS3 status prior to final procurement approval.

Balun Selection Notes

Select this component when a 75 Ohm to 75 Ohm conversion is required up to 1.8 GHz. The 0805 case size offers a balance between performance and board space efficiency compared to larger packages. Consider the thermal operating limits of -40°C to +85°C against the environmental conditions of the end product. Evaluate the trade-off between the specified insertion loss and the overall system noise figure requirements.

Balun Part Context

This part belongs to the DXW series of microchip transformers designed for high-frequency applications. The DXW21BN family specifically targets balanced-to-unbalanced conversion needs in consumer electronics and telecommunications. Murata Electronics produces these components using advanced thin-film technology to ensure consistent electrical characteristics across manufacturing batches.

Balun Replacement Considerations

Direct substitutes include other parts within the DXW21BN series such as the DXW21BN7511TL or DXW21BN7511SL, provided the frequency range and impedance values are compatible. Verify pinout compatibility and physical dimensions before swapping to ensure proper PCB integration without layout modifications.