GAT-4+

Attenuators Overview

The GAT-4+ is a surface-mount fixed attenuator manufactured by Mini-Circuits. It provides a nominal attenuation of 4 dB across a frequency range from DC to 8000 MHz. The component operates with a characteristic impedance of 50 Ohms and is rated for a maximum power handling capacity of 500 mW at ambient temperature, requiring linear derating to 0.2 Watt at 85°C. It utilizes a compact SMD package without leads.

Attenuators Feature Summary

• Fixed 4 dB attenuation value
• Broadband operation up to 8 GHz
• Surface-mount construction

Attenuators Applications

• RF signal level adjustment
• Impedance matching networks
• Test and measurement setups

Attenuators Procurement Notes

Verify the specific datasheet version and case style (FG873) against your design requirements. Confirm that the thermal derating curve aligns with your operational environment, as power handling decreases significantly at elevated temperatures. Ensure the PCB footprint matches the no-lead SMD package dimensions specified in the official documentation.

Attenuators Selection Notes

Select this component when a precise 4 dB reduction is required within an RF chain operating below 8 GHz. Consider the 500 mW power limit and thermal management needs for high-power applications. The surface-mount form factor is suitable for space-constrained designs where traditional through-hole components are impractical.

Attenuators Part Context

This part belongs to the GAT series of miniature plastic fixed attenuators from Mini-Circuits. These components are designed for general-purpose RF and microwave applications requiring stable attenuation values. The series offers various attenuation steps while maintaining consistent impedance characteristics across the specified bandwidth.

Attenuators Replacement Considerations

Consult Mini-Circuits documentation for direct equivalents. Verify that any substitute maintains the 4 dB nominal value, 50 Ohm impedance, and 8 GHz frequency range. Ensure the replacement package is compatible with existing PCB footprints.