4391-25

Attenuators Overview

The Pomona Electronics 4391-25 is a fixed RF attenuator module designed for signal conditioning in radio frequency circuits. It features a BNC in-line connector configuration, allowing for easy integration into existing coaxial setups. The component provides a precise attenuation value of 25 Ohms and supports a maximum power handling capacity of 2 Watts. It operates effectively within a frequency range extending from 0 Hz to 500 MHz. The unit is constructed as a standalone module suitable for benchtop or panel mounting applications requiring stable impedance matching.

Attenuators Feature Summary

• BNC in-line modular design for direct coaxial connection
• Fixed 25 Ohm attenuation characteristic for signal level control
• Operational frequency range up to 500 MHz
• 2 Watt maximum power handling capability

Attenuators Applications

• RF signal attenuation in test and measurement equipment
• Impedance matching in radio frequency transmission lines
• Signal conditioning for laboratory benchtop instruments
• Integration into custom RF circuit prototypes

Attenuators Procurement Notes

Verify the specific part number 4391-25 against official Pomona Electronics documentation to confirm the 25 Ohm impedance and 500 MHz frequency rating. Ensure that the required 2W power handling aligns with your system's thermal and electrical constraints. Cross-reference the BNC connector type to guarantee compatibility with your existing coaxial infrastructure before finalizing procurement decisions.

Attenuators Selection Notes

Select this component when a fixed 25 Ohm attenuation is required for frequencies up to 500 MHz. The BNC in-line form factor is ideal for quick prototyping and temporary test setups. Consider the 2W power limit to ensure safe operation under expected load conditions. This model is suitable for applications prioritizing standard impedance matching over variable adjustment capabilities.

Attenuators Part Context

This component belongs to Pomona Electronics' line of RF attenuators, specifically designed for precision signal management. The 4391 series typically offers various attenuation values and impedance options. The 4391-25 variant is distinct due to its specific 25 Ohm specification, catering to niche applications requiring non-standard impedance levels compared to common 50 Ohm systems.

Attenuators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative models by matching the 25 Ohm impedance, 500 MHz frequency limit, and BNC connector interface specifications.