DFCH4942MHDJAA-RF1

Overview

The DFCH4942MHDJAA-RF1 is a surface-mount SAW duplexer from Murata Electronics' Gigafil series, designed for signal conditioning. It operates at a center frequency of 942 MHz with a nominal impedance of 50 Ohms. The component utilizes a 7-SMD, no-lead package and supports board mounting. It functions within an operating temperature range of -30°C to +85°C.

Feature Summary

• Integrates SAW technology for efficient RF signal filtering and duplexing
• Optimized for compact surface-mount integration in mobile devices
• Provides standardized 50 Ohm impedance matching for RF circuits

Applications

• Mobile phone transceivers
• Wireless communication modules
• RF front-end signal conditioning

Procurement Notes

Verify the current lifecycle status before procurement as this component may be obsolete or restricted. Confirm that the 7-SMD package dimensions align with the target PCB layout. Ensure the 942 MHz frequency specification matches the required system band. Check for RoHS compliance documentation if environmental regulations apply to the final assembly.

Selection Notes

Select this component when a dedicated SAW duplexer is required for the 942 MHz band. Consider the 7-SMD footprint constraints during mechanical design. Evaluate thermal performance against the specified -30°C to +85°C operational limits. Compare insertion loss and isolation characteristics against system requirements to ensure adequate signal integrity.

Part Context

This part belongs to the Murata Gigafil DFCH series, which specializes in SAW-based signal conditioning components. These devices are engineered for high-frequency applications requiring precise frequency selection and noise reduction in compact form factors suitable for modern portable electronics.

Replacement Considerations

Public sources indicate this specific part number is listed as obsolete. Verify availability of direct substitutes through official Murata channels or authorized distributors. Do not assume functional equivalence with other DFCH models without consulting the specific datasheet parameters.