HHM1548E1

Balun Overview

The HHM1548E1 is an RF balun manufactured by TDK Corporation, designed for operation within the 3.2GHz to 3.9GHz frequency range. It provides impedance transformation between unbalanced and balanced lines with values of 50 ohms and 200 ohms respectively. The component features a phase difference of 180° ±10°, maximum insertion loss of 1.2dB, and minimum return loss of 10dB. It is housed in a surface-mount 0805 (2012 Metric) package.

Balun Feature Summary

• Provides RF signal conversion between balanced and unbalanced transmission lines
• Utilizes LTCC technology for compact surface-mount integration
• Maintains specified phase balance and impedance matching across the designated frequency band

Balun Applications

• Wireless LAN modules operating in the 3.2-3.9 GHz spectrum
• RF front-end circuits requiring balanced-to-unbalanced signal conversion
• Compact wireless communication devices utilizing surface-mount assembly

Balun Procurement Notes

Verify part status carefully as the HHM1548E1 is classified as Last Time Buy or Not Recommended for New Designs. Confirm availability through authorized distributors and check for alternative lead times. Ensure compatibility with existing PCB layouts before finalizing procurement decisions due to potential supply constraints.

Balun Selection Notes

Select this component when a 50/200 ohm impedance transformation is required in the 3.2-3.9 GHz range. Consider the 0805 footprint for space-constrained designs. Evaluate thermal and mechanical requirements against the surface-mount specification. Verify that the insertion loss and return loss parameters meet system performance needs.

Balun Part Context

The HHM1548E1 belongs to the HHM series of RF baluns from TDK. These components are engineered for high-frequency applications where size and performance are critical. The series utilizes advanced materials to ensure stability and reliability in modern electronic systems requiring precise signal integrity.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the Last Time Buy status, direct replacements should be sourced from official TDK channels or verified engineering change notices.