LCAT7438-1

Overview

The LCAT7438-1 is a fixed attenuator designed for 75 Ohm impedance circuits. It provides 1 dB of attenuation with a typical value and operates within a frequency range of DC to 4 GHz. The component is rated for a maximum power handling capacity of 2 Watts continuous wave. It features BNC male to BNC jack connectors for in-line module installation. The voltage standing wave ratio (VSWR) is specified as less than 1.35:1, ensuring good performance for adjacent components.

Feature Summary

• Provides fixed 1 dB attenuation for signal level adjustment
• Operates from DC to 4 GHz frequency range
• Supports 2 Watts maximum power handling
• Features BNC male to BNC jack interface

Applications

• 75 Ohm RF circuit signal attenuation
• In-line module integration for broadcast systems
• Signal conditioning in video distribution networks

Procurement Notes

Verify the specific attenuation value suffix matches the required dB rating, as the series includes multiple variants. Confirm connector gender and impedance compatibility with existing 75 Ohm infrastructure. Check manufacturer documentation for lead times and availability status prior to ordering.

Selection Notes

Select this model when a precise 1 dB reduction is needed in 75 Ohm environments. Ensure the 2 Watt power rating exceeds the system's maximum signal levels. Verify that the BNC interface aligns with the connected equipment ports and that the 4 GHz bandwidth covers the operational frequency spectrum.

Part Context

This component belongs to the LCAT7438 series of fixed attenuators manufactured by L-com. The series offers various attenuation values while maintaining consistent 75 Ohm impedance and BNC connectivity. These units are engineered for reliable performance in professional RF and video applications requiring stable signal attenuation.

Replacement Considerations

Compatible substitutes include other LCAT7438 series models with different attenuation values, such as LCAT7438-6 or LCAT7438-10, provided the specific dB requirement differs. Ensure any replacement maintains the 75 Ohm impedance and BNC connector configuration.