KAT-4+

Overview

The KAT-4+ is a fixed attenuator manufactured by Mini-Circuits, designed for RF and microwave applications. It provides a nominal attenuation of 4 dB with a frequency range extending from DC to 43.5 GHz. The component utilizes GaAs MMIC technology and features a compact 2x2 MCLP package. Key electrical specifications include a maximum VSWR of 1.9, an impedance of 50 Ohms, and a power rating of 1.7 W. It operates within a temperature range up to +85 C.

Feature Summary

• Compact 2x2 MCLP surface mount package design
• Super wide frequency bandwidth capability
• Absorptive attenuator architecture using GaAs MMIC process

Applications

• RF signal level control in communication systems
• Impedance matching in high-frequency circuits
• Signal conditioning in test and measurement equipment

Procurement Notes

Verify the specific datasheet version for the KAT-4+ to confirm exact electrical tolerances and thermal characteristics. Ensure compatibility with the intended PCB layout regarding the 2x2 MCLP footprint. Confirm that the operating environment remains within the specified maximum temperature limits of +85 C during system integration.

Selection Notes

Select the KAT-4+ when a fixed 4 dB attenuation is required across a broad spectrum up to 43.5 GHz. Consider its small form factor for space-constrained designs. Verify that the 1.7 W power handling meets system requirements. Compare against other Mini-Circuits attenuators if different attenuation values or frequency ranges are needed.

Part Context

Mini-Circuits produces a comprehensive line of RF and microwave components, including fixed attenuators like the KAT series. These devices are essential for managing signal strength and protecting sensitive downstream components. The KAT-4+ represents a specific value within this broader portfolio, offering precise attenuation in a miniature package suitable for modern high-density electronics.

Replacement Considerations

The KAT-4-D+ is listed as a die variant of the same functional device. Direct replacement requires verifying package compatibility, as the KAT-4+ is a packaged SMD component while the D+ variant is a bare die. Ensure mounting and interconnection methods align with the selected substitute.