551-0507F is a red diffused LED indicator designed for 5V direct operation with high luminous intensity output. The device features a luminous intensity of 8.7 mcd at 5V forward voltage with 19 mA current, and a peak wavelength of 635 nm typical. It has a 3mm cylindrical housing with dimensions of 0.095" (A), 0.018" (B), 0.016" (C), and 0.010" (D), with a 60-degree viewing angle for standard indicator applications. The LED operates reliably across a temperature range of -40°C to +85°C and is rated for maximum power dissipation of 7.5 W, making it suitable for panel-mount indicator applications, status displays, and control panel signaling in industrial and consumer electronics.