HHM1791A1

Balun Overview

The HHM1791A1 is a multilayer chip balun manufactured by TDK Corporation, designed for RF applications within the 2.5 GHz to 2.7 GHz frequency range. It operates with a 50-ohm single-ended port and a 100-ohm differential port, making it suitable for WiMAX and other wireless communication systems. The component is housed in a compact 0603 (1608 metric) surface-mount package with six pads, facilitating automated assembly and space-constrained PCB layouts.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion for RF circuits
• Optimized for high-frequency operation in wireless standards
• Compact surface-mount design for efficient board space utilization

Balun Applications

• WiMAX transceiver modules
• Wireless LAN interfaces
• RF front-end circuitry

Balun Procurement Notes

Verify the specific datasheet version and tape-and-reel specifications prior to ordering. Confirm that the 0603 footprint matches the target PCB design guidelines. Ensure compatibility with standard reflow soldering profiles recommended for multilayer ceramic components to maintain electrical integrity.

Balun Selection Notes

Select this component when a small form factor is required for 2.5–2.7 GHz balanced-to-unbalanced conversion. Consider the 50/100 ohm impedance transformation ratio against system requirements. Evaluate insertion loss and return loss parameters from the official datasheet to ensure signal integrity meets application thresholds.

Balun Part Context

This part belongs to TDK's HHM series of passive RF components. These devices are engineered for high reliability in consumer electronics and industrial wireless equipment. The series offers various impedance configurations and frequency ranges to support diverse RF architecture needs.

Balun Replacement Considerations

Consult TDK technical documentation for direct cross-reference alternatives. Verify pinout compatibility and impedance matching if substituting with similar baluns from other manufacturers.