HHM1727D1

Balun Overview

The HHM1727D1 is a multilayer balun manufactured by TDK Corporation, designed for RF applications within the 3.3 GHz to 3.9 GHz frequency range. It features a 50 Ohm unbalanced port and a 50 Ohm balanced port, providing impedance transformation in a compact 0603 (1608 metric) surface-mount package. The component exhibits an insertion loss of 1.2 dB and maintains a phase balance of 180 degrees with a tolerance of ±15 degrees at the specified frequencies. It operates reliably across a temperature range starting from -40°C.

Balun Feature Summary

• Provides balanced-to-unbalanced signal conversion for RF circuits
• Utilizes multilayer technology for high performance and miniaturization
• Designed for integration into compact wireless communication modules

Balun Applications

• Wireless LAN systems operating in the 5 GHz band
• Bluetooth transceivers requiring impedance matching
• Mobile phone RF front-end modules

Balun Procurement Notes

Verify the specific datasheet version and RoHS compliance status prior to procurement. Confirm that the 0603 package dimensions align with your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Validate that the 50/50 Ohm impedance configuration matches your circuit design needs.

Balun Selection Notes

Select this component when a compact solution is required for balancing signals in the 3.3-3.9 GHz range. The 0603 package size suits space-constrained designs. Consider the 1.2 dB insertion loss impact on system efficiency. Ensure the ±15 degree phase tolerance is acceptable for your application's modulation scheme. Verify compatibility with standard SMD/SMT assembly processes.

Balun Part Context

This balun belongs to TDK's portfolio of RF components utilizing advanced materials like ferrite and ceramic. These components are engineered for mobile phones, WLAN, and Bluetooth devices. The series emphasizes high electrical performance alongside advanced miniaturization techniques, addressing market demands for thinner and lighter electronic devices.

Balun Replacement Considerations

Consult official TDK documentation for verified substitute part numbers. Do not assume functional equivalence based solely on package or frequency similarity. Verify impedance ratios and phase balance specifications against the original design requirements before substitution.