SMA Adapters , 18ghz, Straight style
|Fairview Microwave Inc. ®|
SMA to SMA adapters are usually stainless steel but occasionally brass. Use Stainless Steel SMA's at 8 in-lbs for military applications per mil specs, & either stainless at 8 or brass at 5 in-lbs for commercial
When choosing a sma adapter, one must decide the frequency of interest; 18ghz is the standard sma frequency, extended sma's can go to 26.5 or 27ghz; the standard sma connector often has a suck out at about 20.5ghz. Also the material of the sma adapter is important; stainless steel is the mil-spec & original material, & most connector manufacturers spec 7-10 in-lbs as being required; but many commercial & consumer products have gone to brass sma's; which only last 100 interconnects vs 500, & require less torque, often 4.5-7 in-lbs; it's best to use the same connector types throughout a system.