F77205S180P150E13 (item number 1148988) is a Basic Contact Probe for repeatable temporary electrical connections between the test system and a test point. With tip style 05 (Concave stepped), F77205S180P150E13 combines ICT/FCT use with a geometry intended for pins and wire-wrap posts with a guided, smooth contacting action. F77205S180P150E13 combines a pitch of 2.54 mm / 100 mil with tip style 05 (Concave stepped) and a tip diameter of 1.8 mm. For F77205S180P150E13, spring force is 150 cN at a nominal travel of 4 mm. The plunger in F77205S180P150E13 is made of steel and uses Progressive Coating. On F77205S180P150E13, Progressive Coating is intended for demanding test points such as OSP surfaces and contact areas affected by flux residues or contamination.