PE70A8003

Overview

The PE70A8003 is a 6-bit relay-controlled programmable attenuator manufactured by Pasternack. It operates within a frequency range of DC to 1,000 MHz and provides an attenuation range of 0 to 63 dB with 1 dB resolution steps. The device features a 75-ohm impedance design and utilizes F-type female connectors for both input and output interfaces. Rated for 1 Watt of power handling, it is designed for precise signal level control in RF applications requiring digital step adjustment.

Feature Summary

• Six-bit relay-controlled programmable architecture for digital attenuation adjustment
• 75-ohm impedance system compatibility with F-type female connectors
• High-resolution 1 dB step increments across the full attenuation range

Applications

• RF test and measurement instrumentation requiring precise signal attenuation
• Communication systems utilizing 75-ohm coaxial infrastructure
• Signal processing circuits needing programmable gain control up to 1 GHz

Procurement Notes

Verify that the specific application environment supports 75-ohm impedance standards, as this component differs from common 50-ohm designs. Confirm that the operating frequency does not exceed 1,000 MHz to ensure performance specifications are met. Ensure the control interface matches the relay programming requirements specified in the official datasheet before integration into the final system design.

Selection Notes

Select this model when a 75-ohm system impedance is required rather than the standard 50-ohm configuration. It is suitable for applications demanding high-resolution 1 dB steps and digital control via relays. Consider the 1 Watt power rating and F-type connector compatibility when designing the interconnect chain for frequencies up to 1 GHz.

Part Context

This component belongs to the PE70A series of variable attenuators from Pasternack. It specifically addresses the niche market for 75-ohm programmable attenuation, distinguishing itself from the more common 50-ohm variants. The series offers various connector options and frequency ranges, but this model is unique in its combination of 75-ohm impedance, F-type connectors, and 1 GHz bandwidth.

Replacement Considerations

Direct substitutes must maintain 75-ohm impedance and F-type connectors. Models like PE70A8000 offer similar functionality but typically use 50-ohm impedance and SMA connectors, requiring adapter consideration. Verify that any replacement part matches the 1,000 MHz frequency limit and 1 Watt power rating to avoid performance degradation.