PE7391-20

Overview

The PE7391-20 is a fixed 20 dB attenuator manufactured by Pasternack. It features an SMA male to SMA female interface and utilizes an in-line, resistive PI attenuator pad design. The component has a 50 Ohm impedance and is housed in an aluminum body with black anodized finish. It is rated for operation up to 5 watts of power.

Feature Summary

• Fixed 20 dB attenuation value
• SMA male to SMA female connector configuration
• Resistive PI attenuator pad design
• Aluminum body with black anodized finish

Applications

• RF signal level reduction
• Impedance matching in 50 Ohm systems
• Test and measurement setups requiring precise attenuation

Procurement Notes

Verify the specific datasheet version for the PE7391-20 to confirm mechanical dimensions and thermal characteristics. Ensure compatibility with SMA connectors in your system. Check for any updates regarding the black anodized finish specifications or power rating limits under continuous wave conditions before finalizing procurement.

Selection Notes

Select the PE7391-20 when a fixed 20 dB attenuation is required in a 50 Ohm environment. The SMA interface suits applications needing standard coaxial connections. Consider the aluminum heatsink design for thermal management if operating near the 5-watt limit. Verify frequency range requirements against official documentation.

Part Context

This component belongs to Pasternack's series of fixed coaxial attenuators. It shares the same PI pad design architecture as other models in the PE7391 series, such as the PE7391-3, PE7391-6, and PE7391-10, differing primarily in attenuation value. The series offers various attenuation levels using similar SMA interfaces and aluminum construction.

Replacement Considerations

Compatible substitutes include other 20 dB fixed attenuators with SMA male-to-female interfaces and 50 Ohm impedance. Models like the PE7391-20 from Pasternack are direct replacements within the same product line. Ensure equivalent power handling and frequency range capabilities.