ATT-451M-20-SMA-02

Attenuators Overview

The ATT-451M-20-SMA-02 is a coaxial fixed RF attenuator manufactured by Cinch Connectivity Solutions Midwest Microwave. It provides a nominal attenuation of 20 dB with SMA male connectors. The device operates from DC to 18,000 MHz (18 GHz). It supports a maximum continuous wave input power of 33.01 dBm and maintains a maximum voltage standing wave ratio (VSWR) of 1.34. The unit is constructed for robust performance within an operating temperature range of -65 °C to +125 °C.

Attenuators Feature Summary

• Provides precise 20 dB signal reduction in microwave circuits
• Features SMA male-to-male connector interface for direct integration
• Supports high-frequency operation up to 18 GHz
• Engineered for reliable thermal stability across extreme temperatures

Attenuators Applications

• RF test and measurement instrumentation
• Microwave communication systems
• Signal conditioning in radar equipment
• Aerospace and defense electronics

Attenuators Procurement Notes

Verify the specific manufacturer designation on the component marking, as production may involve Cinch Connectivity Solutions or Midwest Microwave. Confirm that the SMA male connector configuration matches the system requirements. Ensure the thermal environment remains within the specified -65 °C to +125 °C operational limits during deployment. Cross-reference the datasheet version to confirm electrical tolerances align with design specifications.

Attenuators Selection Notes

Select this model when a fixed 20 dB attenuation is required at frequencies extending to 18 GHz. The SMA male interface dictates compatibility with mating female ports. Consider the 33.01 dBm power handling capability against peak signal levels. The wide temperature range makes it suitable for harsh environments where standard commercial components might fail. Verify VSWR requirements against the 1.34 maximum specification.

Attenuators Part Context

This component belongs to the ATT-451 series of fixed attenuators. The series offers various attenuation values selectable in increments. The 'M' suffix indicates SMA male connectors, while 'SMA' confirms the interface type. The '02' likely denotes a specific housing or revision code. These units are designed for applications requiring stable attenuation characteristics over broad frequency bands.

Attenuators Replacement Considerations

Compatible substitutes include ATT-451F-20-SMA-02 for female-female interfaces and ATT-0451-20-SMA-02 for general series alternatives. Verify connector gender and attenuation value before substitution. Ensure replacement parts meet the same 18 GHz frequency and power handling requirements.