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FMSW6190 is listed in the RF Switches range at ChipApex. The manufacturer field lists Fairview Microwave. Its product description is EM RELAY SWITCH 10 GHZ 12 V TYPE. Review the specifications below when checking this part for your BOM.
The FMSW6190 is an obsolete SP4T RF electromechanical relay coaxial switch manufactured by Fairview Microwave. It was designed for radio frequency signal routing applications requiring high isolation and low insertion loss across a broad frequency range typical of microwave systems. As a mechanical switching solution, it provides reliable connection states without the thermal limitations associated with solid-state PIN diode switches. The component has been discontinued from production.
This part number is officially marked as obsolete and no longer manufactured by Fairview Microwave. Procurement through standard distribution channels is not possible. Verification of availability should focus exclusively on secondary market sources or surplus inventory providers. Buyers must confirm the physical condition and testing history of any units obtained outside official supply chains due to the component's discontinued status.
Designers requiring active procurement options must transition to equivalent current models. The manufacturer recommends the FMSW6434 as the direct substitute for this application. Selection criteria should prioritize matching the original SP4T topology and frequency coverage. Engineers must verify that the replacement switch meets the specific isolation and power handling requirements previously satisfied by the FMSW6190 architecture.
Fairview Microwave specialized in high-performance RF components including switches, cables, and attenuators. The FMSW6190 represented their electromechanical switching portfolio, offering durability for high-power environments. Its discontinuation reflects product lifecycle management within the company's broader catalog of microwave interconnect solutions.
The FMSW6434 is the manufacturer-recommended substitute for the FMSW6190. Integration requires verifying pinout compatibility and mounting dimensions. Performance parameters such as isolation and insertion loss should be compared against system specifications to ensure functional equivalence.
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