HHM1907B1

Balun Overview

The TDK HHM1907B1 is a multilayer balun designed for signal conditioning in high-frequency applications. It operates within a frequency range of 4.9 GHz to 5.95 GHz, with a center frequency typically at 5.425 GHz. The component provides an impedance transformation from 50 Ohm unbalanced to 50 Ohm balanced. Key electrical specifications include a maximum insertion loss of 0.8 dB and a phase difference of 180° ±10°. It is housed in a compact 0402 (1005 Metric) surface-mount package.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion for RF circuits
• Operates effectively across the 4.9 GHz to 5.95 GHz frequency band
• Maintains low insertion loss for efficient signal transmission
• Ensures precise phase balance between output ports

Balun Applications

• WLAN modules operating in the 5 GHz band
• RFID reader antenna interfaces
• Wireless communication device signal paths

Balun Procurement Notes

Verify the specific datasheet version and ordering information directly with TDK Corporation or authorized distributors. Confirm that the 0402 package dimensions and soldering profiles align with your PCB assembly requirements. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Cross-reference part numbers to avoid confusion with similar balun variants.

Balun Selection Notes

Select this component when a compact solution is required for 5 GHz WLAN or RFID applications. The 0402 footprint suits space-constrained designs. Evaluate the 0.8 dB insertion loss against system link budget requirements. Consider the 180° phase accuracy for differential signal integrity. Verify thermal performance limits relative to the intended operating environment.

Balun Part Context

This balun belongs to TDK's line of passive RF components used for impedance matching and signal balancing. It complements other microwave filters and couplers in wireless infrastructure. The technology utilizes multilayer ceramic construction for reliability in high-frequency environments. It supports modern mobile and IoT connectivity standards requiring miniaturization.

Balun Replacement Considerations

Consult official substitution lists for equivalent baluns with identical 50/50 Ohm impedance and 4.9-5.95 GHz coverage. Verify pinout compatibility and mechanical footprint alignment before replacement. Ensure phase difference and insertion loss specifications meet or exceed original design parameters.