ams OSRAM TOPLED® D5140 Silicon PIN Photodiode (SFH 2202)

ams OSRAM TOPLED® D5140 Broadband Silicon PIN Photodiode (SFH 2202) provides higher sensitivity to visible light in the green wavelength and increased linearity (30x higher) than standard photodiodes on the market. By reducing the effect of interference from ambient light and improving the received optical signal quality, these enhanced features enable smart watches, activity trackers, and other wearables to measure heart rate and blood oxygen saturation (SpO₂) more accurately. The SFH 2202 photodiode allows system operation with lower LED light intensity, saving power and extending battery run-time while maintaining highly accurate measurements. The specially designed package with black sidewalls minimizes internal cross-talk, further decreasing errors in optical measurements and increasing the constancy of heart rate measurements.