HHM1711Q1

Balun Overview

The HHM1711Q1 is a surface-mount RF balun manufactured by TDK Corporation, designed for high-frequency signal conversion. It operates within a frequency range of 2.3GHz to 3.8GHz, making it suitable for modern wireless communication standards. The component provides impedance transformation between unbalanced and balanced lines, specifically converting from 50 Ohms to 100 Ohms. Key electrical specifications include a maximum insertion loss of 1.0dB and a minimum return loss of 10dB. The phase difference is maintained at 180° with a tolerance of ±15°. It is housed in a compact 0603 (1608 Metric) package with six printed circuit board pads, facilitating automated assembly in space-constrained electronic designs.

Balun Feature Summary

• Converts single-ended signals to differential signals across the 2.3GHz to 3.8GHz spectrum
• Provides precise 180-degree phase shift with tight tolerance for signal integrity
• Matches 50-ohm unbalanced ports to 100-ohm balanced loads efficiently
• Utilizes a low-profile 0603 surface-mount footprint for dense PCB layouts

Balun Applications

• RF front-end modules in mobile devices
• Wireless local area network (WLAN) transceivers
• Bluetooth and Wi-Fi antenna interfaces
• High-speed digital signal conditioning circuits

Balun Procurement Notes

Verify current availability status as the component may be subject to lifecycle changes. Confirm that the specific ordering suffix matches the required tape and reel configuration for automated pick-and-place processes. Ensure compliance with RoHS3 regulations and check for any recent product change notifications regarding material or manufacturing site updates before finalizing procurement orders.

Balun Selection Notes

Select this component when designing circuits requiring balanced-to-unbalanced conversion in the 2.3GHz to 3.8GHz band. Consider the 0603 package size if board real estate is limited. Evaluate the 1.0dB insertion loss against system power budget requirements. Ensure the 100-ohm balanced impedance aligns with the target differential circuit design rather than standard 50-ohm systems.

Balun Part Context

This part belongs to TDK's HHM series of passive RF components. These baluns are engineered for consistency in phase and amplitude balance. The series supports various frequency bands tailored for different wireless protocols. The HHM1711Q1 specifically targets higher frequency applications compared to lower-band variants in the same family.

Balun Replacement Considerations

Check for direct cross-reference parts from TDK or other manufacturers offering identical 2.3GHz-3.8GHz performance. Verify pin compatibility and impedance matching for seamless integration. Review datasheets for equivalent insertion loss and phase balance metrics to ensure no degradation in RF performance.