PE7389-40

Overview

The Pasternack PE7389-40 is a fixed RF attenuator module designed for high-power applications. It provides a nominal attenuation of 40 dB with a frequency range extending from DC to 3 GHz. The device features N-type connectors, specifically an N male input and an N female output, facilitating direct inline integration into coaxial systems. Constructed with a black anodized aluminum heatsink body, it supports a maximum power handling capacity of 50 watts. This configuration ensures reliable signal reduction in demanding radio frequency environments.

Feature Summary

• Provides precise 40 dB signal attenuation across the specified bandwidth
• Features robust N-type male-to-female connector interface for secure mating
• Utilizes a black anodized aluminum heatsink body for thermal management
• Supports bidirectional signal flow within the rated power limits

Applications

• High-power RF test and measurement setups requiring signal reduction
• Radio frequency communication systems needing precise gain control
• Defense and aerospace electronic subsystems operating up to 3 GHz

Procurement Notes

Verify that the specific order matches the PE7389-40 designation to ensure the correct 40 dB attenuation value. Confirm that the system requirements align with the 50-watt power rating and the 3 GHz frequency limit. Ensure compatibility with N-type connector gender specifications before installation. Review the manufacturer datasheet for detailed environmental ratings and mechanical dimensions to guarantee proper fit within the intended assembly.

Selection Notes

Select this component when a fixed 40 dB attenuation level is required for signals up to 3 GHz. Consider the 50-watt power handling capability for high-energy applications. Verify that the N-type male-to-female interface matches the existing cabling infrastructure. Evaluate the heatsink design for adequate thermal dissipation in enclosed spaces compared to lower-power alternatives.

Part Context

This model belongs to the PE7389 series of fixed attenuators manufactured by Pasternack. The series offers various attenuation values, including 6, 10, 30, and 40 dB options, all sharing similar physical construction and performance characteristics. These modules are part of Pasternack's broader portfolio of RF interconnect solutions, designed for consistency in form factor and reliability across different attenuation levels.

Replacement Considerations

Direct substitutes include other PE7389 series models if variable attenuation is acceptable, such as PE7389-30 or PE7389-10. Generic replacements must match the N-type connector interface, 40 dB attenuation value, and 50-watt power rating. Ensure any alternative component maintains the same DC to 3 GHz frequency range and heatsink construction for equivalent thermal performance.