Opto semiconductor element

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Phototransistor

The Phototransistor is attached the transistor to the latter part of a photo-diode. Products attached two transistors are called The Photodarlington Transistor, and are classifiedinto P/N ST- and P/N PT-. Phototransistor and Photodarlington have a feature of high output, but it is not so strong for linearity and response speed specifications, compared with Photodiode. Therefore, these are mainly used for switching use, such as Photointerrupter, Daylight Sensor, and Photoreflector. Many kinds of packages are ready for various use.

■Features
Ta=25°C

Type No. Light
current
IL(mA)
Dark
current
Id(nA)
VCEO=10V
Max.
Spectral
sensitivity
λ(nm)
Peak
wavelength
λp(nm)
Typ.
Harf
angle
Δθ(°)
Operating
temp.
Topr.(°C)
Min. VCE (V) Ev(lx)
ST-1CL3H pdf 0.08 3 1000 200 480~1000 800 ±50 -20~+70
ST-1KB pdf 0.5 10 200 200 500~1050 880 ±50 -30~+100
ST-1KL3A pdf 1.5 10 200 200 500~1050 880 ±6 -30~+100
ST-1KL3B pdf 1.5 10 200 200 500~1050 880 ±6 -30~+100
ST-1KLA pdf 1.5 10 200 200 500~1050 880 ±15 -30~+100
ST-1KLB pdf 1.5 10 200 200 500~1050 880 ±15 -30~+100
ST-1MLA pdf 0.5 10 200 200 500~1050 880 ±70 -25~+90
ST-1MLB pdf 0.5 10 200 200 500~1050 880 ±70 -25~+90
ST-1MLBR2 pdf 0.5 10 200 200 720~1050 940 ±70 -25~+90
ST23G pdf 0.5 5 1000 100 500~1050 880 ±30 -20~+100
ST333R4 pdf 0.6 5 1000 100 870~1100 960 ±20 -25~+85
ST333R4F pdf 0.6 5 1000 100 870~1100 960 ±20 -25~+85
ST333R4F1 pdf 0.6 5 1000 100 870~1100 960 ±20 -25~+85
ST341R2 pdfnew 0.76 5 200 100 720~1050 880 ±20 -20~+85
ST601 pdf 0.08 3 1000 200 480~1000 800 ±65 -25~+80
ST615 pdf 3.4 5 1000 100 500~1050 880 ±30 -25~+80

*illuminance setting by a specified standard element

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