The Basic Contact Probe F05055B090G150 (item number 1134073) is a spring-loaded probe for temporary electrical contact with test points. With tip style 55 (Concave stepped (self-cleaning)), F05055B090G150 combines ICT/FCT use with a geometry intended for pins and wire-wrap posts with a guided, smooth contacting action. F05055B090G150 combines a pitch of 1.27 mm / 50 mil with tip style 55 (Concave stepped (self-cleaning)) and a tip diameter of 0.9 mm. For F05055B090G150, spring force is 150 cN at a nominal travel of 4.3 mm. The plunger in F05055B090G150 is made of beryllium copper and is gold-plated.