R411804000

Overview

The R411804000 is a fixed coaxial attenuator manufactured by Radiall USA, Inc. It provides a nominal attenuation of 4 dB with a characteristic impedance of 50 Ohms. The device operates within a frequency range of 0 MHz to 15,000 MHz (15 GHz). It features SMA connectors and supports a maximum continuous wave input power of 33.01 dBm (2 Watts). The unit has a maximum voltage standing wave ratio of 1.35. Operating temperatures range from -55 °C to 125 °C. The construction is coaxial with gold-plated terminals over a nickel barrier.

Feature Summary

• Provides precise 4 dB signal attenuation for RF applications
• Operates up to 15 GHz frequency range
• SMA connector interface for in-line module integration
• Robust thermal performance across wide temperature extremes

Applications

• RF signal level adjustment in communication systems
• Test and measurement equipment calibration
• Microwave circuit impedance matching networks
• Signal distribution system power reduction

Procurement Notes

Verify the specific datasheet version for the R411804000 to confirm current RoHS compliance status and lead times. Ensure SMA connector compatibility with existing PCB or cable assemblies. Check thermal management requirements given the 2W power rating. Confirm that the 15 GHz frequency response meets system bandwidth needs. Validate operating temperature ranges against environmental conditions.

Selection Notes

Select this component when a fixed 4 dB attenuation is required at 50 Ohms. Suitable for designs needing SMA connectivity up to 15 GHz. Consider the 2W power handling capability for high-power RF paths. Evaluate the -55 °C to 125 °C range for harsh environments. Compare VSWR specifications against system loss budgets.

Part Context

This part belongs to Radiall's line of connectorized attenuators. It is designed for in-line module applications. The series includes various attenuation values and connector types. The R411804000 specifically targets high-frequency RF circuits requiring stable attenuation characteristics.

Replacement Considerations

Check Radiall's official documentation for direct substitutes. Verify equivalent models from other manufacturers match the 4 dB value, 50 Ohm impedance, and SMA interface. Ensure frequency range and power ratings are equal or superior.