PE7391-1

Overview

The Pasternack PE7391-1 is a fixed RF attenuator designed for in-line applications within radio frequency systems. It provides a precise attenuation value of 1 dB across a frequency range extending from DC to 3 GHz. The component utilizes SMA connectors, featuring a male interface on one side and a female interface on the opposite side, ensuring compatibility with standard coaxial infrastructure. Constructed with an aluminum heatsink body finished in black anodized coating, it offers thermal management capabilities rated for up to 5 watts of power handling at the specified attenuation level. This configuration supports reliable signal conditioning in microwave environments.

Feature Summary

• Provides fixed 1 dB attenuation for signal level adjustment
• Operates effectively from DC up to 3 GHz frequency range
• Features SMA male-to-female connector interface for direct integration
• Utilizes black anodized aluminum heatsink body for thermal dissipation

Applications

• RF signal path attenuation in communication systems
• Microwave circuit testing and measurement setups
• Signal conditioning in wireless infrastructure equipment

Procurement Notes

Verify the specific part number PE7391-1 against official Pasternack documentation to confirm the 1 dB attenuation value and SMA gender configuration. Ensure the required power rating of 5 watts aligns with system operational limits. Cross-reference connector types to guarantee mechanical compatibility with existing SMA interfaces. Confirm RoHS compliance status if environmental regulations apply to the deployment environment.

Selection Notes

Select this model when a precise 1 dB reduction is required within the 0 Hz to 3 GHz spectrum. The SMA interface dictates compatibility with standard coaxial cables and test equipment. Consider the 5-watt power rating to ensure safe operation under expected load conditions. The aluminum heatsink design supports continuous wave applications where thermal management is critical for maintaining performance stability over time.

Part Context

This component belongs to the Pasternack series of fixed RF attenuators, specifically designed for inline module applications. These devices are engineered to provide stable attenuation values without introducing significant impedance mismatches. The series typically includes various attenuation steps, all sharing similar construction methodologies involving aluminum heatsinks and standardized SMA connectors to ensure uniform performance characteristics across different attenuation levels within the same product family.

Replacement Considerations

Compatible substitutes include other 1 dB fixed attenuators with SMA male-to-female interfaces and a 3 GHz frequency range. Verify that alternative models maintain the 5-watt power handling capability and utilize comparable aluminum heatsink construction. Ensure exact matching of connector genders and impedance specifications to prevent mechanical or electrical incompatibility during installation.