Doga Tech, the leading manufacturer of PPG SpO2 Sensor Chips based in South Korea. The LED series consists of a 660nm (red) LED and a companion IR LED such as 880/ 895, 905, or 940nm. They are widely used for ratiometeric measurements such as medical analytical and monitoring devices. They can also be used in applications requiring a low cost BiWavelength light source. They are available in leadless ceramic substrate (AlGaAs). The matching photodectors responses are optimized for maximum responsivity at 660nm as well as near IR wavelengths 940nm, they exhibit low capacitance and low dark currents in the same type of packaging as the dual emitters leadless ceramic substrate.
Doga Tech is also leading manufacturer of Electronic Toll collaction System Known as HI-Pass in Korea. Including we are manufacturing Area Sensor, Screen Door Sensor and Subminiature Photo Electric Switch. Should you have any query please do not hesitate to contact us.