19xx Target Contacts Mill-Max 19xx Target Contacts are suited for mating with Mill-Max's larger .092' (2.34mm) plunger diameter spring-loaded pins. There are two types of through-hole pins, the 1946-0-00-15-00-00-03-0 with a flat contact surface and the 1945-0-00-15-00-00-03-0 with a concave contact surface. The SMT pins have a flat contact surface, 1944-0-00-15-00-00-03-0 or 1944-0-57-15-00-00-03-0 and concave contact surface, 1943-0-00-15-00-00-03-0 options. The 19xx Target Contacts from Mill-Max feature a .125' (3.17mm) diameter face and .120' (3.05mm) above board height. The through-hole contact options also include a .030' (.76mm) diameter tail.