HHM1946A1

Balun Overview

The HHM1946A1 is a signal conditioning LTCC balun manufactured by TDK Corporation, designed for RF applications within the 2300 MHz to 2700 MHz frequency range. It provides a 50 Ohm unbalanced to 100 Ohm balanced impedance transformation with a bandwidth of 400 MHz. The component features a compact SMD/SMT surface mount package measuring 0.5 mm x 1.0 mm x 0.5 mm maximum thickness. It operates reliably within a temperature range of -40°C to +85°C and is available in Reel, Cut Tape, and MouseReel packaging formats.

Balun Feature Summary

• LTCC construction for high-frequency signal integrity
• Integrated 50-ohm to 100-ohm impedance transformation
• Compact 0402 footprint design for space-constrained layouts

Balun Applications

• Wireless LAN modules
• Bluetooth low energy transceivers
• Zigbee communication devices

Balun Procurement Notes

Verify that the specific ordering suffix matches the required tolerance and packaging format. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure storage conditions align with moisture sensitivity levels defined in the datasheet to maintain component reliability during assembly processes.

Balun Selection Notes

Select this component when a 50-ohm single-ended interface must connect to a 100-ohm differential RF path. The fixed 2300-2700 MHz operating range dictates suitability for ISM band applications. Evaluate board space constraints against the 0.5x1mm physical dimensions to ensure compatibility with existing footprints.

Balun Part Context

This part belongs to the TDK HHM series of LTCC baluns. These components are engineered for miniaturized wireless modules requiring precise phase and amplitude balance. The series supports various impedance configurations tailored for modern short-range communication standards.

Balun Replacement Considerations

Consult official TDK substitution lists for verified equivalents. Generic cross-references may not match the specific LTCC material properties or impedance tolerances required for certified RF performance.