HHM1776B3

Balun Overview

The TDK HHM1776B3 is a multilayer RF balun transformer designed for GSM900 applications. It operates within a frequency range of 880MHz to 960MHz, providing balanced and unbalanced ports with a nominal impedance of 50 ohms each. The component utilizes a 0603 (1608 metric) surface-mount package, measuring 1.60mm in length, 0.80mm in width, and 0.60mm in thickness. It supports an operating temperature range from -40°C to +85°C and is suitable for both transmit and receive paths in wireless communication systems.

Balun Feature Summary

• Multilayer construction optimized for GSM900 Tx and Rx signal integrity
• Provides balanced-to-unbalanced conversion with 50-ohm port matching
• Compact 0603 surface-mount footprint for space-constrained designs

Balun Applications

• GSM900 Transmitter circuits
• GSM900 Receiver circuits
• Wireless communication modules requiring RF baluns

Balun Procurement Notes

Verify the specific ordering suffix and packaging configuration when sourcing, as availability may vary between tape and reel, cut tape, or Digi-Reel formats. Confirm that the component status aligns with current design requirements, noting that supply chain conditions can affect lead times and stock levels for electronic components.

Balun Selection Notes

Select this component for GSM900 band applications requiring a compact 0603 balun. Ensure the design accommodates the specified 880MHz to 960MHz frequency range and 50-ohm impedance matching. Consider the thermal operating range of -40°C to +85°C for environmental compatibility in the target device.

Balun Part Context

The HHM1776B3 belongs to TDK's HHM series of multilayer balun transformers. These components are engineered specifically for mobile phone applications, offering reliable performance in converting differential signals to single-ended signals for GSM900 standards. The series includes various packages and specifications tailored to different frequency bands and power requirements.

Balun Replacement Considerations

The HHM1522B1 is identified as a manufacturer-recommended substitute. Verify electrical compatibility, including frequency range and impedance, before substitution. Note that the HHM1522B1 uses an 0805 package, which differs physically from the 0603 form factor of the HHM1776B3.