FMAT7449-10

Attenuators Overview

The FMAT7449-10 is a fixed RF attenuator manufactured by Fairview Microwave, designed for signal conditioning in high-frequency applications. It provides a precise attenuation value of 10 dB within a frequency range extending from 100 MHz to 3 GHz. The component features a 50 Ohm impedance system and utilizes TNC connectors, specifically a male plug on one end and a female jack on the other, ensuring compatibility with standard coaxial infrastructure. It is rated to handle up to 2 Watts of power, making it suitable for moderate-power signal paths. The unit exhibits a Voltage Standing Wave Ratio (VSWR) of 1.35:1, indicating efficient signal transmission with minimal reflection. Constructed with a brass body, this inline module offers durability and consistent performance across its operational bandwidth.

Attenuators Feature Summary

• Provides fixed 10 dB attenuation for signal level adjustment
• Operates effectively from 100 MHz to 3 GHz frequency range
• Features TNC male-to-female connector configuration for easy integration

Attenuators Applications

• RF test and measurement setups requiring precise signal reduction
• Communication systems needing signal level matching between stages
• Laboratory environments for attenuating high-frequency signals

Attenuators Procurement Notes

Verify the specific model suffix against official Fairview Microwave documentation to confirm connector gender orientation and tolerance specifications. Ensure that the 2 Watt power rating aligns with your system's peak power requirements to prevent component damage. Cross-reference the 100 MHz lower frequency limit with your application's lowest operating frequency to ensure adequate performance at the band edge. Confirm that the TNC interface matches your existing cable assembly standards before finalizing procurement orders.

Attenuators Selection Notes

Select this component when a fixed 10 dB reduction is required within the sub-3 GHz spectrum. The TNC interface makes it ideal for benchtop equipment or panel-mounted applications where robust mechanical connections are preferred over smaller SMA types. Consider the 2 Watt power handling capability when designing chains involving higher power amplifiers. This model serves as a direct inline solution without requiring external biasing or complex mounting hardware, simplifying system integration compared to variable attenuators.

Attenuators Part Context

This part belongs to Fairview Microwave’s line of connectorized attenuators, which are passive components used to reduce signal amplitude without distortion. These devices are essential for protecting sensitive receivers and ensuring accurate measurements in RF circuits. The FMAT7449 series specifically utilizes TNC connectors, offering a balance between performance and ease of use. Fixed attenuators in this category provide stable, temperature-compensated attenuation values, unlike variable units which may introduce insertion loss variations.

Attenuators Replacement Considerations

Direct substitutes include other 10 dB fixed attenuators with TNC connectors and similar power ratings, such as the FMAT7449-10 from Fairview Microwave itself. Alternative manufacturers producing equivalent TNC inline attenuators with 100 MHz to 3 GHz coverage may also be compatible, provided the VSWR and power handling meet or exceed the original specifications.