SA18H-30

Attenuators Overview

The SA18H-30 is a fixed attenuator from Fairview Microwave designed for RF interconnect applications. It provides a nominal attenuation of 30 dB with a frequency range extending from DC to 18 GHz. The component features SMA male (plug) to SMA female (jack) connectors and operates at a system impedance of 50 Ohms. It is rated for a maximum power handling capacity of 2 Watts. The unit utilizes a passivated stainless steel body and maintains a Voltage Standing Wave Ratio (VSWR) of 1.35:1. Operating temperatures range from -54°C to +125°C.

Attenuators Feature Summary

• Provides precise 30 dB signal attenuation across a wide bandwidth up to 18 GHz
• Features durable passivated stainless steel construction for environmental resistance
• Ensures high signal integrity with a consistent 1.35 VSWR performance

Attenuators Applications

• RF test and measurement setups requiring precise signal reduction
• High-frequency communication systems operating within the 18 GHz limit
• Laboratory equipment interfacing between SMA connectorized components

Attenuators Procurement Notes

Verify that the specific order matches the SA18H-30 model designation to ensure the correct 30 dB attenuation value, as this series includes various attenuation levels. Confirm that the SMA male-to-female configuration aligns with the existing cabling infrastructure. Ensure the 2 Watt power rating is sufficient for the intended application signals. Check that the 18 GHz frequency coverage meets the operational requirements of the system under test.

Attenuators Selection Notes

Select this component when a fixed 30 dB reduction is required in an RF path. The choice is driven by the need for a broadband response up to 18 GHz combined with standard SMA connectivity. The 50 Ohm impedance compatibility is essential for maintaining signal fidelity in standard RF environments. Consider the thermal operating range if the device will be used in extreme temperature conditions.

Attenuators Part Context

This part belongs to the SA18H series of connectorized attenuators manufactured by Fairview Microwave. The series is characterized by its use of passivated stainless steel bodies and SMA interfaces. Other models in this family offer different attenuation values such as 3 dB, 6 dB, 10 dB, and others, all sharing similar electrical and mechanical specifications including the 18 GHz frequency limit and 2 Watt power rating.

Attenuators Replacement Considerations

Direct substitutes include other SA18H series models like SA18H-03, SA18H-06, or SA18H-10 if different attenuation values are acceptable. Cross-brand replacements must match the 30 dB attenuation, 18 GHz frequency range, 50 Ohm impedance, and SMA male-to-female connector type.