LCAT7490-20

Overview

The LCAT7490-20 is a fixed RF attenuator manufactured by L-com, providing a precise attenuation value of 20 dB. It operates within a frequency range from 0 Hz to 6 GHz and is rated for a maximum power handling capacity of 5 Watts. The component utilizes NEX10 connectors, featuring a male-to-female configuration for in-line integration. It maintains a maximum Voltage Standing Wave Ratio (VSWR) of 1.25:1, ensuring efficient signal transmission with minimal reflection across its specified bandwidth.

Feature Summary

• Provides fixed 20 dB attenuation for signal level control
• Operates from DC up to 6 GHz frequency range
• Handles up to 5 Watts of continuous power
• Features NEX10 male to female connector interface

Applications

• RF signal path attenuation in communication systems
• Test and measurement equipment signal conditioning
• Wireless infrastructure component interfacing

Procurement Notes

Verify the specific connector gender configuration matches the system requirement, as NEX10 interfaces require precise male-to-female alignment. Confirm that the 5W power rating and 6GHz frequency limit align with the operational parameters of the target application to ensure reliable performance and prevent component damage under high-power conditions.

Selection Notes

Select this model when a fixed 20 dB reduction is required within a 6 GHz bandwidth. Ensure the system supports NEX10 connectors rather than standard N-type or SMA variants. Verify that the 5W power handling capability exceeds the maximum expected signal power in the circuit to maintain optimal VSWR and thermal stability during operation.

Part Context

This component belongs to L-com's line of fixed RF attenuators designed for coaxial applications. It serves as a passive device to reduce signal amplitude without introducing significant distortion. The NEX10 connector style indicates compatibility with specific industrial and military-grade interconnect standards, distinguishing it from general-purpose consumer RF components.

Replacement Considerations

Substitute only with other LCAT7490 series models if different attenuation values are needed while maintaining identical connector types and power ratings. Ensure any replacement part specifies NEX10 connectors and a 6 GHz frequency range to maintain mechanical and electrical compatibility.