HHM1525

Balun Overview

The HHM1525 is a multilayer chip balun designed for DCS-PCS transmit and receive applications. It operates within a frequency range of 1.71GHz to 1.99GHz, providing impedance transformation between unbalanced and balanced ports at 50/50 Ohms. The component features a maximum insertion loss of 1.0dB and a minimum return loss of 10dB. It maintains a phase difference of 180° ±10°. Packaged in an 0805 (2012 metric) surface-mount case, it supports operation from -40°C to +85°C.

Balun Feature Summary

• Multilayer LTCC construction for high reliability
• Integrated balancing function for RF signal conversion
• Compact 0805 surface-mount footprint

Balun Applications

• DCS band transceiver circuits
• PCS band transceiver circuits
• Wireless communication modules

Balun Procurement Notes

Verify the current lifecycle status before integration, as this component may be marked as not recommended for new designs. Confirm that the specific package variant matches the required PCB layout dimensions. Ensure compliance with RoHS3 specifications and check moisture sensitivity level ratings for proper storage handling during assembly processes.

Balun Selection Notes

Select this component when designing for DCS or PCS frequency bands requiring compact balun solutions. The 0805 package suits space-constrained layouts. Evaluate insertion loss and return loss requirements against system link budget constraints. Consider thermal operating ranges for environmental durability in mobile devices.

Balun Part Context

Part of the TDK HHM series of multilayer chip baluns. These components utilize Low Temperature Co-fired Ceramic technology to provide efficient signal balancing in small form factors suitable for modern wireless communication hardware.

Balun Replacement Considerations

Check for direct substitutes within the HHM series such as HHM1523B3 if frequency ranges align. Verify impedance matching and physical footprint compatibility before swapping components in existing designs.