LCAT7438-10

Overview

The LCAT7438-10 is a fixed RF attenuator from the L-com Series 438, designed for 75 Ohm video and broadcast applications. It provides a nominal attenuation of 10 dB across a frequency range of 0 Hz to 4 GHz. The component is rated for a maximum power handling capacity of 2 Watts. It features a BNC plug-to-BNC jack configuration, facilitating direct inline connection in signal chains. The housing is constructed from three-metal plated brass to ensure durability and effective shielding.

Feature Summary

• Provides precise 10 dB signal reduction for 75 Ohm systems
• Operates effectively within a 0 Hz to 4 GHz bandwidth
• Constructed with durable three-metal plated brass housing

Applications

• Video distribution networks requiring signal level adjustment
• Broadcast equipment signal chain management
• RF test and measurement setups involving 75 Ohm interfaces

Procurement Notes

Verify that the specific part number LCAT7438-10 matches the required 10 dB attenuation value, as the series suffix indicates the decibel rating. Confirm the 75 Ohm impedance requirement aligns with the system design, as this component is not suitable for 50 Ohm environments. Ensure the BNC connector orientation (plug to jack) fits the physical layout constraints of the installation point.

Selection Notes

Select this model when a fixed 10 dB loss is necessary for 75 Ohm video or RF signals up to 4 GHz. Consider the 2 Watt power rating to ensure it exceeds the maximum expected signal power in the application. The BNC interface dictates compatibility with existing connectors; verify mating hardware requirements before procurement.

Part Context

This component belongs to the L-com Series 438, which includes various fixed attenuators with different attenuation values. The series designation uses a numeric suffix to denote the specific decibel rating, such as -6 for 6 dB or -10 for 10 dB. These units are generally characterized by their robust brass construction and standardized 75 Ohm impedance for professional video and broadcast use.

Replacement Considerations

Direct substitutes include other LCAT7438-10 units from authorized distributors. Alternative models from the same Series 438 family must be verified for identical 10 dB attenuation and 75 Ohm impedance. Cross-manufacturer replacements require strict verification of the BNC connector type and frequency response characteristics.