SA03B75-30

Attenuators Overview

The SA03B75-30 is a fixed attenuator manufactured by Fairview Microwave, designed for RF signal management. It features BNC male (plug) to BNC female (jack) connectors with a characteristic impedance of 75 Ohms. The device provides a nominal attenuation of 30 dB and operates at frequencies up to 3 GHz. It is rated for continuous power handling of 2 Watts. The construction utilizes a brass body with a nickel finish, ensuring durability in standard RF environments.

Attenuators Feature Summary

• Provides precise 30 dB signal attenuation for 75 Ohm systems
• Utilizes robust BNC connector interface for secure mating
• Constructed with brass body and nickel plating for corrosion resistance

Attenuators Applications

• Video surveillance signal distribution networks
• Broadcasting equipment signal conditioning
• RF test and measurement setups requiring 75 Ohm termination

Attenuators Procurement Notes

Verify the specific connector gender configuration matches the system requirements, as BNC variants exist in different pin/socket arrangements. Confirm that the 75 Ohm impedance aligns with the transmission line characteristics of the application. Ensure the 2 Watt power rating exceeds the maximum expected signal level to prevent thermal damage. Check for any updated datasheet revisions that may affect mechanical dimensions or material specifications before final integration.

Attenuators Selection Notes

Select this component when a 75 Ohm impedance environment is required, such as in video or broadcast infrastructure. The BNC interface offers ease of connection compared to threaded types. Consider the 2 Watt power limit; higher power applications require attenuators with heatsink bodies or higher wattage ratings. Verify frequency coverage up to 3 GHz meets the operational bandwidth needs without significant insertion loss variation.

Attenuators Part Context

Fairview Microwave produces a range of RF attenuators for various impedance standards. The SA series includes both 50 Ohm and 75 Ohm options. This model specifically addresses the 75 Ohm market segment, differing from the company's 50 Ohm BNC attenuators which are common in general RF testing. It complements other fixed attenuators in the lineup by providing specialized impedance matching for legacy and broadcast systems.

Attenuators Replacement Considerations

Direct substitutes must match the 75 Ohm impedance, BNC connector type, 30 dB attenuation value, and 2 Watt power rating. Generic 50 Ohm BNC attenuators are not electrically compatible due to impedance mismatch. Verify that alternative manufacturers offer components with similar VSWR performance and frequency response up to 3 GHz to ensure signal integrity preservation.