SQA-0182-03-SMA-02

Attenuators Overview

The SQA-0182-03-SMA-02 is a space qualified RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a fixed attenuation value of 3dB with an operating frequency range from 0 Hz to 18 GHz. The component supports a power rating of 2W and utilizes SMA in-line module connectors. Designed for harsh environments, it operates within a temperature range of -55°C to +125°C.

Attenuators Feature Summary

• Space qualified construction designed for aerospace applications
• Fixed 3dB attenuation across a wide DC to 18 GHz bandwidth
• Robust SMA in-line module interface for reliable signal control

Attenuators Applications

• Satellite communication systems requiring signal level adjustment
• Spacecraft payload instrumentation and testing equipment
• High-reliability aerospace radar subsystems

Attenuators Procurement Notes

Verify the specific datasheet revision and quality certification documents directly with the manufacturer or authorized distributors before procurement. Confirm that the space qualification status meets the specific mission requirements. Ensure that the SMA connector gender and mating hardware are compatible with the existing system architecture to prevent mechanical interference.

Attenuators Selection Notes

Select this component when a fixed 3dB reduction is required in high-frequency RF paths up to 18 GHz. The choice is driven by the need for space-grade reliability and wide operational temperature tolerance. Consider the 2W power handling capability relative to the system's maximum output levels. Verify compatibility with SMA interfaces and ensure the in-line module form factor fits the available physical space constraints.

Attenuators Part Context

This part belongs to the SQA series, which represents space qualified attenuators from Midwest Microwave. These components are engineered to meet stringent aerospace standards, including total mass loss and collected volatile condensable materials limits. The series offers various attenuation values while maintaining consistent electrical performance and rugged mechanical design suitable for orbital deployment.

Attenuators Replacement Considerations

Direct substitutes include other space qualified attenuators from the same SQA family with identical 3dB attenuation and SMA interfaces, such as variants with different housing materials if weight constraints differ. Cross-manufacturer replacements must match the 0-18 GHz frequency range, 2W power rating, and SMA in-line configuration to ensure functional equivalence.