5-102203-1 is a single row right angle (SR RA) header from the AMPMODU .025 [0.64] Square Interconnection System, designed for board-to-board and wire-to-board connections. This 4-position header features a 0.100 inch (2.54 mm) centerline pitch with 0.025 inch (0.64 mm) square posts. The connector utilizes Plating B configuration with duplex plating: 0.000015 inch (0.00038 mm) gold on the contact area and 0.000100-0.000200 inch (0.00254-0.00508 mm) tin on the solder area, with the entire post underplated with 0.000050 inch (0.00127 mm) nickel. With dimensions of A: 0.520 inch (13.21 mm), B: 0.440 inch (11.18 mm), and C: 0.300 inch (7.62 mm), this RoHS compliant header is suitable for general-purpose electronic interconnection applications requiring reliable right-angle mounting.