Founded in 1970, Citizen Electronics Co., Ltd. is a Japanese electronic components manufacturer headquartered in Fujiyoshida, Yamanashi, Japan. As a core subsidiary of Citizen Watch Co., Ltd., the company specializes in optoelectronics, crystal devices, and precision parts. Its LED portfolio includes surface-mount chip LEDs, high-brightness automotive LEDs, and LCD backlight units. In frequency control, it supplies quartz crystal units, clock oscillators, and VCXO/TCXO modules under the Citizen brand. Sensor offerings cover photointerrupters, reflective sensors, and ambient light sensors for consumer and industrial use. Citizen also delivers customized LED modules and integrated solutions for automotive, healthcare, and smart home markets. The company holds a leading position in global LED backlighting and is a top-tier supplier of miniature crystal oscillators for mobile and IoT devices. With manufacturing sites in Japan and China and a worldwide sales network, it serves major OEMs. Citizen Electronics continuously advances micro-fabrication and precision engineering, rooted in its watchmaking heritage.