SA18H-25

Attenuators Overview

The SA18H-25 is a fixed RF attenuator manufactured by Fairview Microwave, designed for signal reduction in high-frequency circuits. It provides a nominal attenuation of 25 dB across a frequency range from 0 Hz to 18 GHz. The component features SMA male-to-female connectors and operates with a 50 Ohm impedance. It is rated for a maximum power handling of 2 Watts and maintains a Voltage Standing Wave Ratio (VSWR) of 1.35:1. The unit utilizes a passivated stainless steel body and functions within an operating temperature range of -54°C to +125°C.

Attenuators Feature Summary

• Fixed attenuation value of 25 dB for precise signal level control
• Broadband operation extending up to 18 GHz frequency
• Passivated stainless steel construction for durability
• SMA male to female inline connector configuration

Attenuators Applications

• RF test and measurement instrumentation
• Wireless communication system signal conditioning
• Microwave circuit design and prototyping
• Signal path power management in high-frequency setups

Attenuators Procurement Notes

Verify the specific SMA connector gender configuration and physical dimensions against schematic requirements before ordering. Confirm that the 2W power rating and 18 GHz frequency limit align with the operational environment. Check RoHS compliance status if environmental regulations apply to the final assembly. Ensure the passivated stainless steel housing meets corrosion resistance needs for the intended installation location.

Attenuators Selection Notes

Select this model when a fixed 25 dB reduction is required at frequencies up to 18 GHz. The SMA interface suits standard laboratory and industrial RF connections. Consider the 2W power limit for thermal management in enclosed spaces. The wide temperature range supports operation in harsh environments without additional heating or cooling measures.

Attenuators Part Context

This component belongs to the SA18H series of connectorized attenuators from Fairview Microwave. The series offers various attenuation values while maintaining consistent electrical performance and mechanical form factors. These units are engineered for reliability in demanding RF applications requiring stable signal attenuation over broad bandwidths.

Attenuators Replacement Considerations

Equivalent parts include M3933/16-55S, M3933/25-89S, M3933/30-34N, M3933/30-34S, R413825121, and SF0929-6200-25. Verify connector compatibility and exact attenuation tolerances when substituting.