Tin-plated phosphor bronze contacts are rated 5 A per circuit at 110 V, with a 100.0 µin (2.54 µm) mating-side finish that supports moderate cycle counts in controlled environments.
The 0.100" row spacing matches the same pitch as the pin-to-pin spacing, so the 52-position footprint occupies a 26-position-wide by 2-row grid — 2.600" (66.04 mm) across the long axis. The 0.318" (8.08 mm) mating pin length provides enough reach for standard box headers or socket strips, while the 0.230" (5.84 mm) solder tail length suits typical 0.062" to 0.093" PCB thicknesses.