141-3901-803

Overview

The Cinch Connectivity Solutions Johnson 141-3901-803 is a fixed SMA in-line RF attenuator module designed for high-frequency signal processing. It provides an attenuation value of 3 dB with a characteristic impedance of 50 Ohms, ensuring compatibility with standard RF systems. The component supports a frequency range from 0 Hz to 6 GHz and handles a maximum power rating of 2W. Constructed as a passive device, it utilizes SMA connectors for secure inline integration into transmission lines.

Feature Summary

• Provides precise 3 dB signal attenuation for controlled power reduction
• Maintains 50 Ohm impedance matching across the operational bandwidth
• Supports continuous wave power handling up to 2 Watts
• Operates effectively within a DC to 6 GHz frequency spectrum

Applications

• RF test and measurement instrumentation signal conditioning
• Communication system power level adjustment
• Receiver protection against high input signals
• Signal generator output calibration and stabilization

Procurement Notes

Verify the specific SMA connector gender configuration and physical dimensions against the official datasheet before procurement. Confirm that the 2W power rating aligns with the thermal management capabilities of the target application environment. Ensure the 0 Hz to 6 GHz frequency specification meets the operational requirements of the intended circuit design.

Selection Notes

Select this component when a fixed 3 dB attenuation is required for 50 Ohm systems operating below 6 GHz. Consider the 2W power limit to prevent thermal damage during continuous operation. Evaluate the physical form factor for space constraints within the assembly. Verify connector interface compatibility with existing cable assemblies or PCB traces.

Part Context

This part belongs to the Cinch Connectivity Solutions Johnson series of connectorized RF attenuators. These modules are engineered for reliable performance in demanding electronic environments. The series offers various attenuation values and connector types to support diverse RF engineering needs. This specific model focuses on low-loss signal management within the microwave frequency range.

Replacement Considerations

No direct public substitute part numbers are confirmed in the provided documentation. When sourcing alternatives, ensure the replacement matches the 3 dB attenuation value, 50 Ohm impedance, 2W power rating, and 6 GHz frequency limit. Verify SMA connector compatibility and physical size constraints.