PE7049-3

Overview

The Pasternack PE7049-3 is a fixed RF attenuator designed for signal level reduction in coaxial systems. It features BNC male to BNC female connectors and provides a precise attenuation value of 3 dB. The unit operates within a frequency range of DC to 4 GHz and maintains a characteristic impedance of 50 Ohms. It is rated for a maximum input power of 2 Watts at the specified attenuation level. The construction utilizes a brass body with nickel plating, ensuring durability and consistent electrical performance across its operational bandwidth.

Feature Summary

• Fixed 3 dB attenuation value for precise signal reduction
• BNC connector interface for standard coaxial integration
• Operates from DC to 4 GHz frequency range
• Rated for 2 Watts maximum input power

Applications

• RF test and measurement setups requiring fixed signal loss
• Protecting sensitive receiver inputs from high power signals
• Impedance matching in 50 Ohm coaxial transmission lines
• Signal conditioning in microwave communication systems

Procurement Notes

Verify that the required attenuation tolerance and power rating align with system specifications before ordering. Confirm connector gender compatibility with existing cable assemblies. Check environmental ratings if operation exceeds standard temperature ranges. Ensure the 50 Ohm impedance matches the rest of the RF chain to minimize reflections.

Selection Notes

Select this model when a fixed 3 dB loss is required up to 4 GHz. Compare against variable attenuators if adjustable loss is needed. Consider higher power ratings if input signals exceed 2 Watts. Verify BNC connector availability versus other interfaces like SMA or N-type based on system constraints.

Part Context

This component belongs to Pasternack's line of fixed coaxial attenuators. It serves as a passive interconnect device for reducing signal amplitude without active components. The series includes various attenuation values and connector types to support diverse RF engineering requirements.

Replacement Considerations

Direct substitutes must match the 3 dB attenuation, 50 Ohm impedance, and BNC female-to-male configuration. Alternative models may offer different power ratings or frequency extensions. Verify mechanical dimensions and mounting requirements if space is constrained.