SMD LEDs Würth Elektronik SMD LEDs are Surface-Mount Technology (SMT) mono-color chip LEDs with a water-clear lens designed to allow more flexibility for miniature and portable devices. These LEDs feature low energy consumption, low current requirements, and high reliability. The Würth Elektronik SMD LEDs are available in blue, green, bright green, yellow, amber, red, and super red colors. These LEDs are available in the industrial standard 0603 domes, super-flat, and advanced package sizes with additional package size in 0805 and 1206.