FMNS4004

Overview

The FMNS4004 is a surface-mount noise source module manufactured by Fairview Microwave. It operates within a frequency range of 200 kHz to 3 GHz and requires a +12 VDC supply voltage. The device provides an excess noise ratio (ENR) of 51 dB with a flatness specification of ±2 dB. Designed for general-purpose applications, it utilizes an 8-SMT package configuration. This component serves as a calibrated reference signal generator for RF testing environments.

Feature Summary

• Surface-mount technology construction for automated assembly integration
• Wideband operational frequency coverage from low kilohertz to gigahertz ranges
• High excess noise ratio output for precise calibration measurements

Applications

• Vector Network Analyzer calibration procedures
• Noise figure measurement systems
• RF receiver sensitivity testing
• General-purpose signal generation in test setups

Procurement Notes

Verify the specific datasheet version prior to procurement to ensure compatibility with current design requirements. Confirm that the 8-SMT package dimensions align with the target PCB footprint. Validate that the +12 VDC supply requirement matches the available power infrastructure in the application environment. Check for any recent updates regarding RoHS compliance status or material declarations.

Selection Notes

Select this component when a wideband noise source is required for frequencies extending up to 3 GHz. The 51 dB ENR value makes it suitable for measuring high-noise-figure receivers. Consider the surface-mount form factor if space constraints or automated manufacturing processes are priorities. Ensure the system can provide stable +12 VDC power without significant ripple affecting the noise output stability.

Part Context

Fairview Microwave specializes in RF components and cable assemblies. The FMNS4004 belongs to their line of active RF modules designed for test and measurement applications. It complements passive components like attenuators and cables by providing active signal sources necessary for comprehensive system characterization and calibration workflows.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.