HHM1752A2

Balun Overview

The HHM1752A2 is a multilayer RF balun manufactured by TDK Corporation, designed for high-frequency applications within the 4.9GHz to 5.95GHz range. This component facilitates impedance transformation between unbalanced and balanced circuits with specified impedances of 50 ohms and 200 ohms. It features a maximum insertion loss of 1.2dB and a minimum return loss of 10dB, ensuring signal integrity in wireless systems. The device utilizes a 180° ±10° phase difference and is housed in a compact 0603 (1608 metric) surface-mount package. Classified as not recommended for new designs, it remains available for existing production needs.

Balun Feature Summary

• Provides RF balance-to-unbalance conversion for frequencies between 4.9GHz and 5.95GHz
• Transforms impedance between 50 ohm unbalanced and 200 ohm balanced lines
• Maintains a phase difference of 180 degrees with a tolerance of plus or minus 10 degrees

Balun Applications

• Wireless local area network (WLAN) transceivers
• Ultra-wideband (UWB) communication systems
• High-frequency RF front-end modules

Balun Procurement Notes

Verify component status carefully as this part is designated as not recommended for new designs. Confirm availability through authorized distributors, noting that supply may be limited due to end-of-life considerations. Ensure the specific ordering suffix matches the required packaging format, such as tape and reel or cut tape, to align with assembly requirements. Cross-reference datasheets for updated environmental compliance information.

Balun Selection Notes

Select this component when a 50-ohm to 200-ohm impedance transformation is required in the 4.9GHz to 5.95GHz band. Consider the 0603 footprint for space-constrained layouts. Evaluate insertion loss and return loss specifications against system sensitivity requirements. Note that alternative models may be necessary for new projects due to the discontinued status for fresh design-in.

Balun Part Context

This balun belongs to TDK's HHM series of multilayer RF components. These devices are engineered for miniaturization and performance in microwave frequency ranges. The HHM1752A2 specifically targets applications requiring precise phase matching and impedance balancing in compact form factors, supporting modern wireless standards.

Balun Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Due to the 'not recommended for new design' status, engineers should consult TDK technical support or distributor catalogs for current equivalent offerings with similar electrical characteristics and package dimensions.