Optocouplers We offer Optocouplers, Pb free, RoHS compliance, 6 sigma quality LEDs, displays, infrared and photo-couplers. With 4000 types of components, we support requirement for automotive LED lightings, infrared lightings, LED lighting, signage, display, backlighting, projection, IR products, optical sensor, photo couplers, automotive, white goods, consumer electronics and photo link.