HHM1731F1

Balun Overview

The HHM1731F1 is a multilayer balun manufactured by TDK Corporation, designed for RF applications within the frequency range of 1.71 GHz to 1.88 GHz. It features a 50-ohm single-ended input and a 200-ohm differential output, facilitating impedance transformation in balanced circuits. The component utilizes a compact 0603 surface-mount package with dimensions of 1.60mm length, 0.80mm width, and 0.60mm thickness. It operates reliably within a temperature range of -40°C to 85°C and exhibits a maximum insertion loss of 1.2dB.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion for RF systems
• Integrates 50-ohm to 200-ohm impedance transformation
• Supports high-frequency operation up to 1.88 GHz
• Utilizes a compact 0603 surface-mount form factor

Balun Applications

• RF front-end modules requiring impedance matching
• Wireless communication devices operating in the specified frequency band
• Balanced antenna interface circuits

Balun Procurement Notes

Verify that the specific application requires a 50-ohm to 200-ohm transformation ratio, as this differs from standard 50-ohm to 50-ohm baluns. Confirm that the operating frequency range of 1.71 GHz to 1.88 GHz aligns with the system design requirements. Ensure compatibility with the 0603 footprint and reflow soldering processes during assembly planning.

Balun Selection Notes

Select this component when a wide impedance transformation ratio is necessary for balanced circuit designs. Consider the maximum insertion loss specification to ensure it meets system sensitivity requirements. Evaluate the thermal performance within the -40°C to 85°C range against environmental conditions. Compare physical dimensions against available board space constraints.

Balun Part Context

This component belongs to TDK's portfolio of passive RF components, specifically multilayer baluns. These devices are engineered to replace discrete transformer implementations, offering reduced size and improved consistency in mass production. The HHM1731F1 addresses the need for efficient signal balancing in modern wireless infrastructure.

Balun Replacement Considerations

No public confirmed substitute part numbers are available.