EHF-FD1750

Balun Overview

The EHF-FD1750 is a surface-mount balun hybrid component manufactured by Panasonic Electronic Components. It operates within a frequency range of 1.7 GHz to 1.95 GHz, designed for RF applications requiring balanced-to-unbalanced signal conversion. The device features a 1:4 turns ratio with an impedance transformation from 50 ohms to 200 ohms. It is housed in a compact 0603 (1608 Metric) package, suitable for space-constrained designs. The phase difference is specified at 180° ±15°, ensuring accurate signal integrity for digital portable telephones and mobile communication systems.

Balun Feature Summary

• Provides balanced to unbalanced signal conversion with high isolation characteristics
• Ultra miniaturized thin type construction for efficient PCB layout
• Impedance matching capability between 50 and 200 ohms
• Optimized for low insertion loss in high-frequency circuits

Balun Applications

• Digital portable telephone systems
• Dual mode portable telephone devices
• Mobile communication system interfaces
• Personal handy-phone systems

Balun Procurement Notes

Verify the specific manufacturer part number against official Panasonic documentation to confirm the 0603 package and 1.7-1.95 GHz frequency range. Ensure that the procurement source provides valid traceability for electronic components. Cross-reference datasheet specifications for phase difference and impedance values before integration into final designs to avoid compatibility issues with existing circuit requirements.

Balun Selection Notes

Select this component when designing RF front-ends for GSM or DCS bands requiring a 1:4 impedance transformation. The 0603 footprint is critical for modern handheld devices with limited board space. Consider the 180-degree phase shift requirement for differential signal processing. Verify thermal performance and soldering compatibility with standard SMT processes during the design-in phase to ensure reliable long-term operation.

Balun Part Context

This balun belongs to Panasonic's EHF series of hybrid components, which utilize fine line printing technologies for miniaturization. These components are engineered for wireless communication applications where size and performance are paramount. The series supports various frequency ranges from 100 MHz to 4000 MHz, offering standardized solutions for impedance matching and signal balancing in consumer electronics and mobile infrastructure.

Balun Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official Panasonic catalogs for direct equivalents within the EHF series that match the required frequency and impedance parameters.