HHM1944A1

Balun Overview

The HHM1944A1 is a signal conditioning LTCC balun manufactured by TDK Corporation, designed for RF applications within the 758 MHz to 821 MHz frequency range. It provides impedance transformation between 50 Ohms unbalanced and 100 Ohms balanced ports. The component operates within a temperature range of -40°C to +85°C and utilizes surface-mount technology in a compact 0402 (1005 Metric) package.

Balun Feature Summary

• Integrates low-temperature co-fired ceramic (LTCC) technology for robust RF performance
• Facilitates balanced-to-unbalanced signal conversion with specified impedance matching
• Engineered for high-frequency operation within defined cellular bands

Balun Applications

• LTE mobile communication modules
• 5G wireless infrastructure components
• RF front-end circuitry requiring impedance transformation

Balun Procurement Notes

Verify that the specific part number matches the required frequency band and impedance specifications for your design. Confirm RoHS compliance status through official documentation. Ensure the supplier provides valid traceability data. Check for any obsolescence notices or not-for-new-designations from the manufacturer before finalizing procurement plans.

Balun Selection Notes

Select this component when a compact solution is needed for converting single-ended signals to differential signals in the 758-821 MHz range. Consider the 0402 footprint constraints and thermal operating limits. Evaluate insertion loss and return loss parameters against system requirements to ensure signal integrity is maintained across the operational bandwidth.

Balun Part Context

This device belongs to the HHM series of RF baluns from TDK. These components are specifically engineered for modern wireless communication standards. The series offers various frequency options tailored to different global cellular bands, providing designers with standardized solutions for impedance matching in space-constrained PCB layouts.

Balun Replacement Considerations

Consult official TDK documentation for direct substitutes. Cross-reference impedance ratios and physical dimensions if considering alternative manufacturers. Verify that any replacement maintains compatibility with the 758-821 MHz operational range and 0402 package form factor.