PE70A3901

Overview

The PE70A3901 is a 30 dB programmable USB-controlled attenuator manufactured by Pasternack. It features 2.92mm female connectors on both input and output ports, providing a 50 Ohm impedance environment. The device offers a step resolution of 1 dB across its operational range from 100 MHz to 40 GHz. This inline module is designed for precise RF signal attenuation in high-frequency applications requiring digital control.

Feature Summary

• USB-controlled programmability for remote operation
• High-frequency performance up to 40 GHz
• Fine 1 dB step resolution for precision attenuation

Applications

• Automated test equipment (ATE) systems
• Wireless communication development
• RF component characterization
• Signal processing research

Procurement Notes

Verify the specific connector gender and interface type against system requirements before ordering. Confirm that the USB control protocol matches the host controller capabilities. Ensure the operating frequency range aligns with the application's maximum signal frequency. Check for any required software drivers or libraries for USB communication integration.

Selection Notes

Select this model when precise, digitally controlled attenuation is required at frequencies exceeding standard SMA or N-type limits. The 2.92mm interface ensures low VSWR and high repeatability compared to lower-grade connectors. Consider the 1 dB step size as sufficient for most calibration tasks, but verify if finer resolution is needed for specialized measurements.

Part Context

This part belongs to Pasternack's series of programmable attenuators. It differs from fixed attenuators by offering variable control via USB. The 2.92mm connector choice indicates suitability for millimeter-wave applications where higher frequency stability is critical compared to standard coaxial interfaces.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. Similar models may exist within the same product family with different connector types or frequency ranges, but functional equivalence requires verification of control interface and electrical specifications.