Unique Air Coplanar tip design with choice of beryllium copper (BeCu) or tungsten tip material DC to 110 GHz models available in single and dual line versions Low insertion and return loss with ultra-low-loss ( -L ) versions Excellent crosstalk characteristics Wide operating temperature -65 ° C to + 200 ° C Wide range of pitches available, from 50 to 1250 μm Individually supported contacts Reduced contact (RC) probe tips for small pads BeCu tip provides rugged, repeatable contact on gold pads