4-contact spring-loaded piston for board-level interconnect
The 815-22-004-30-001101 is a 4-contact spring-loaded piston connector from the Mill-Max 815 series, designed for surface-mount board-level interconnect where a controlled normal force is required between mating surfaces. Contacts are copper alloy with 20.0 µin (0.51 µm) gold finish, and the single-row layout at 0.100" (2.54 mm) pitch matches standard prototyping and production footprints.
Pitch, plating, and mounting
The 0.100" (2.54 mm) pitch and single-row 4-contact arrangement suit applications where a compact, non-shrouded spring-loaded interface is needed for test points, docking stations, or board-to-board connections with controlled mating force. Gold plating at 20.0 µin (0.51 µm) on the contact surface supports repeated mating cycles without degradation of contact resistance.