For UV to visible, precision photometry; suppressed IR sensitivity These Si photodiodes have suppressed IR sensitivity. They are suitable for low-light-level detection in analysis and the like. High UV sensitivity (quartz window type): QE 75 % (λ=200 nm) Analytical equipment Optical measurement equipment, etc. Structure / Absolute maximum ratings Effective photosensitive area Photosensitive area size (mm) Window material Quatz Resin potting Quatz Resin potting Quatz Resin potting Quatz Resin potting Absolute maximum ratings Operating Storage Reverse temperature temperature voltage Topr Tstg VR max (V) (°C) (°C) * Refer to “Precautions against UV light exposure.” Note: Exceeding the absolute maximum ratings even momentarily may cause a drop in product quality. Always be sure to use the product within the absolute maximum ratings. Electrical and optical characteristics (Typ. Ta=25 °C, unless otherwise noted) Spectral Peak response sensitivity range wavelength λ λp Noise equivalent power NEP

Spectral response S1227-BQ series Photosensitivity temperature characteristics (Typ. ) Dark current Dark current vs. reverse voltage

Dimensional outlines (unit: mm) Photosensitive area 1.1 × 5.9 Photosensitive surface 15 ± 0.15 Photosensitive surface Quartz window Anode terminal mark Anode terminal mark The resin potting may extend a maximum of 0.1 mm above the upper surface of the package. KSPDA0095EB KSPDA0094EB 6.6 ± 0.3 Anode terminal mark 6.6 ± 0.3 Anode terminal mark Photosensitive surface Quartz window Photosensitive surface The resin potting may extend a maximum of 0.1 mm above the upper surface of th

Photosensitive surface Photosensitive Quartz window surface Anode terminal mark 8.0 ± 0.3 Anode terminal mark The resin potting may extend a maximum of 0.1 mm above the upper surface of the package. KSPDA0098EB Anode terminal mark 13.7 ± 0.3 Anode terminal mark Photosensitive surface Resin Quartz window Photosensitive surface The resin potting may extend a maximum of 0.1 mm above the upper surface of the package. KS

Precautions against UV light exposure ∙ When UV light irradiation is applied, the product characteristics may degrade. Such examples include degradation of the product’s UV sensitivity and increase in dark current. This phenomenon varies depending on the irradiation level, irradiation intensity, usage time, and ambient environment and also varies depending on the product model. Before employing the product, we recommend that you check the tolerance under the ultraviolet light environment that the product will be used in. ∙ Exposure to UV light may cause the characteristics to degrade due to gas...