LCAT7469-1

Overview

The LCAT7469-1 is a fixed coaxial attenuator manufactured by L-com, designed for RF signal attenuation in high-frequency applications. It provides a nominal attenuation of 1 dB with a tolerance of ±1 dB. The component operates over a frequency range from DC to 12 GHz and maintains a characteristic impedance of 50 Ohms. It supports a maximum continuous wave power handling of 2 Watts. The unit features TNC connectors, specifically a male plug on one end and a female jack on the other. The maximum Voltage Standing Wave Ratio (VSWR) is specified at 1.35:1.

Feature Summary

• Fixed 1 dB attenuation value for precise signal level reduction
• Wideband operation capability extending up to 12 GHz
• Robust 50 Ohm impedance matching for standard RF systems
• TNC connector interface ensuring secure mechanical connection

Applications

• RF test and measurement equipment calibration
• Signal conditioning in wireless communication infrastructure
• Attenuation stages in microwave circuit design
• Laboratory setups requiring precise signal power reduction

Procurement Notes

Verify the specific connector gender configuration matches the system requirement, as the model denotes a plug-to-jack arrangement. Confirm that the 2W power rating aligns with the operational CW power levels in the target application. Ensure the 12 GHz frequency limit covers the entire operational bandwidth of the signal chain. Check for any environmental specifications if deployment occurs outside standard laboratory conditions.

Selection Notes

Select this component when a low attenuation value near 1 dB is required within a broadband DC to 12 GHz spectrum. The TNC interface dictates compatibility with existing TNC-equipped hardware. Consider the 50 Ohm impedance constraint to ensure proper matching across the network. Evaluate the 2W power handling against peak and average signal powers to prevent thermal damage or performance degradation during continuous operation.

Part Context

This part belongs to the LCA series of fixed attenuators from L-com, which offers various attenuation values and connector configurations. The series is engineered for general-purpose RF applications requiring reliable signal attenuation. The LCAT7469-1 specifically addresses needs for minimal signal loss while maintaining high-frequency performance characteristics typical of TNC-based interconnect solutions.

Replacement Considerations

Direct substitutes must match the 1 dB attenuation, 50 Ohm impedance, DC-12 GHz frequency range, and TNC plug-to-jack configuration. Verify that alternative components meet the same 2W power handling and VSWR specifications to ensure electrical equivalence without redesigning the surrounding circuitry.