The Step Probe F73311B1027G150SP1 (item number 1008980) is a Spring Contact Probe with a disc-shaped contact area for position and presence testing. On F73311B1027G150SP1, electrical contact is established only at the intended penetration depth, making the Step Probe suitable for position and presence checks on connectors. F73311B1027G150SP1 is suited to contacts located in housings, recesses or difficult-to-access areas because its disc head makes contact only at a defined penetration depth. Key mechanical specifications for F73311B1027G150SP1 include pitch 4 mm / 157 mil, step diameter 3.5 mm, pin diameter 1.4 mm, pin length 2.4 mm, spring force 150 cN, pointing accuracy ±0.1 mm. F73311B1027G150SP1 is rated for 10 A continuous current with a typical contact resistance of 25 mΩ. The stepped contact geometry of F73311B1027G150SP1 makes electrical contact only in the intended installation position and can therefore help detect missing or incorrectly positioned terminals.