N3433-6303RB is a 3M Four-Wall Header connector from the 3000 Series, designed for high-density interconnect applications with 50 pins arranged in a 0.100" × 0.100" grid pattern. The header features optional latch/ejector mechanisms available in both straight and right angle configurations, with military-grade polarization support using 3M's 3518 and N3518 polarizing keys. The insulator is constructed from glass-filled polyester (PBT in gray or PCT high-temperature option in black), with copper alloy contacts plated with 100 µ" nickel underplating and 30 µ" gold wiping area. The connector supports multiple contact tail options including solder tails for 0.062" thick PC boards (Dim E: 0.112" ± 0.010") and thicker boards up to 0.125" (Dim E: 0.155" ± 0.010"), with pin cross-section of 0.0245" ± 0.0005" square. This header is ideal for military applications, telecommunications, and high-reliability systems requiring secure mating with optional ejector latches and polarizing features.