551-1103F is a 2 mA red diffused LED designed for low-power indicator and status display applications. It features a forward voltage range of 1.7 V to 2.7 V (typical 2.2 V) at 2 mA operating current, with a peak wavelength of 635 nm and luminous intensity of 1.0 mccl minimum and 1.6 mccl typical. The LED is housed in a 3 mm diffused package with a height of 130 mils (3.30 mm) and lead diameter of 0.047 inches (1.19 mm), making it suitable for through-hole PCB mounting. This RoHS-compliant component is ideal for low-power indicator circuits, status monitoring, and applications requiring minimal current draw while maintaining visible light output.