LCAT1005-03

Overview

The LCAT1005-03 is an RF fixed attenuator manufactured by L-com, designed for high-frequency signal management. It provides a nominal attenuation of 3dB with an accuracy of ±0.5dB across a frequency range from DC to 18 GHz. The component features a 50 Ohm impedance and supports a maximum input power of 2W. It utilizes SMA connectors in an in-line module configuration, connecting male to female interfaces. Constructed from stainless steel, the unit operates within a temperature range of -55°C to 125°C and maintains a VSWR of less than 1.30:1.

Feature Summary

• Provides precise 3dB signal attenuation for RF applications up to 18 GHz
• Features robust stainless steel construction for durability and environmental resistance
• Supports high power handling capabilities with a 2W maximum input rating
• Ensures signal integrity through low VSWR performance below 1.30:1

Applications

• RF test and measurement setups requiring precise signal level reduction
• Wireless communication systems operating within the specified frequency band
• Signal conditioning in radar and electronic warfare equipment
• Laboratory environments needing stable attenuation between components

Procurement Notes

Verify the specific datasheet version provided by L-com or authorized distributors to confirm current manufacturing status and technical specifications. Ensure that the SMA connector gender combination (male to female) matches the system requirements. Cross-reference the part number LCAT1005-03 against official L-com catalogs to avoid confusion with similar models in the LCAT series. Confirm compliance with relevant environmental standards if used in harsh conditions.

Selection Notes

Select this component when a fixed 3dB attenuation is required for signals up to 18 GHz. The 50 Ohm impedance aligns with standard RF transmission lines. Consider the 2W power rating to ensure it exceeds the expected signal levels in the circuit. The wide operating temperature range makes it suitable for demanding industrial or military applications where thermal stability is critical for consistent performance.

Part Context

This model belongs to the LCAT series of RF attenuators from L-com, which are characterized by their in-line module design and SMA interface compatibility. The series offers various attenuation values to suit different signal processing needs. These components are engineered for reliability in high-frequency environments, providing consistent performance across a broad spectrum while maintaining structural integrity through metal housing construction.

Replacement Considerations

Equivalent parts include SA18H-01 from Fairview Microwave and BW-S1-2W263A+ from Mini-Circuits, which offer similar 1dB attenuation but differ in value. For direct 3dB replacement, verify availability of other LCAT series variants or comparable SMA attenuators from manufacturers like Amphenol SV Microwave, ensuring identical frequency, power, and impedance specifications.