LAT-9+

Overview

The Mini-Circuits LAT-9+ is a fixed RF attenuator designed for surface-mount applications. It provides an attenuation value of 9.0 dB with a tolerance range of 9.1 to 9.2 dB across its operational bandwidth. The device operates from DC up to 2.5 GHz and maintains a 50 Ohm impedance. It features a TO-253-4 package and supports a maximum input power of 0.5 W at 25°C.

Feature Summary

• Fixed attenuation design providing consistent signal reduction
• Surface-mount construction for automated PCB assembly
• Broadband operation covering DC to 2.5 GHz frequencies

Applications

• RF test and measurement systems
• Signal conditioning in communication circuits
• Impedance matching networks

Procurement Notes

Verify the specific datasheet revision when sourcing, as Mini-Circuits may update mechanical dimensions or electrical tolerances over time. Confirm that the TO-253-4 footprint matches your PCB layout requirements. Ensure thermal management strategies account for the 0.5 W power rating during continuous operation to maintain reliability within the specified temperature range.

Selection Notes

Select this component when a precise 9 dB fixed loss is required in the S-band frequency range. The TO-253-4 package offers a robust solution for high-power handling compared to smaller MMIC packages. Consider the 0.5 W power limit when designing stages with high signal levels to prevent device degradation or failure under peak conditions.

Part Context

This part belongs to the LAT series of fixed attenuators manufactured by Mini-Circuits. The series utilizes GaAs technology to deliver stable performance across wide bandwidths. These components are engineered for integration into wireless infrastructure and instrumentation where reliable signal attenuation is critical for system stability and noise floor management.

Replacement Considerations

Direct substitutes include other 9 dB fixed attenuators in similar packages, such as the KAT-9+. Verify that replacement parts match the 2.5 GHz frequency limit and 0.5 W power handling capabilities to ensure circuit compatibility without redesign.