The KD1-S511ARA is a 0.51-inch (13 mm) single-digit red common-anode 7-Segment LED Display in a surface-mount package. It has a typical dominant wavelength of 630 nm and a typical luminous intensity of 19.0 mcd, both measured at IF = 10 mA. The standard version features a gray surface with white segments, while a black surface is available as an option.

This SMD LED Display has package dimensions of 12.25 × 17.5 × 3.75 mm and a 10-pin configuration. The datasheet provides a recommended PCB layout, tape-and-reel packaging at 700 pcs per reel, and defined Pb-free reflow soldering conditions. It also specifies readability at distances up to 7 meters and stable performance under high ambient light conditions.

For designs using surface mount 7-segment displays, the KD1-S511ARA provides a compact single-digit LED Numeric Display for panel meters, control equipment, home appliances, point-of-sale terminals and general digital readouts.