The Normally Open Switch Probe F88605B300G550LM (item number 1054008) combines spring-loaded contacting with a defined switching or sensing function. F88605B300G550LM combines electrical contacting with a switching signal so that DUT presence or position can be evaluated directly in the test sequence. In F88605B300G550LM, the normally open function closes the electrical contact at the defined actuation travel, combining contacting with presence or position information. F88605B300G550LM operates with 550 cN spring force and 4 mm nominal travel. F88605B300G550LM combines a pitch of 3.5 mm / 138 mil with tip style 05 (Concave stepped) and a tip diameter of 3 mm.