HRF-AT4611-FL-TR

Overview

The HRF-AT4611-FL-TR is an RF attenuator manufactured by Honeywell Aerospace. It provides a fixed attenuation value of 31.5dB within a frequency range of 0 Hz to 4 GHz. The component operates with a nominal impedance of 50 Ohms. It is housed in a 16-VQFN package featuring an exposed pad, designed for surface-mount applications. This device is intended for radio frequency signal management in aerospace and electronic systems requiring precise attenuation characteristics.

Feature Summary

• Provides fixed 31.5dB attenuation across the DC to 4 GHz spectrum
• Designed for 50 Ohm system impedance compatibility
• Utilizes a compact 16-VQFN surface-mount package with exposed thermal pad

Applications

• Radio frequency signal conditioning in aerospace electronics
• Test and measurement equipment requiring precise attenuation
• Communication systems operating within the specified frequency range

Procurement Notes

This component is listed as obsolete or discontinued by the manufacturer. Verification of availability through authorized distributors is required. Buyers should confirm end-of-life status and lead times carefully. Alternative sourcing may involve checking secondary market suppliers or identifying approved replacement parts from the same product family. Ensure all documentation matches the specific suffix FL-TR for tape and reel packaging.

Selection Notes

Select this part when a fixed 31.5dB attenuation is required at 50 Ohms up to 4 GHz. The 16-VQFN package suits space-constrained designs. Verify that the thermal requirements of the exposed pad are met by the PCB layout. Consider the discontinued status when planning long-term production cycles. Ensure the application does not require variable attenuation or different impedance levels.

Part Context

This model belongs to Honeywell's HRF series of RF attenuators. The series includes various models with different attenuation values and package options, such as the HRF-AT4610. These components are engineered for high reliability in demanding environments. The specific suffix indicates the package type and packaging method. The series is known for consistent performance in microwave and radio frequency applications.

Replacement Considerations

The HRF-AT4610-FL-TR is a related part in the same series but uses a 24-VQFN package instead of 16-VQFN. Direct substitution requires verifying pinout compatibility and board space constraints. Other models in the HRF series may offer different attenuation values. Consult official datasheets for detailed mechanical and electrical comparisons before replacing.