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| Photo transistors K DNH OESI ST-1KA ST-1KB DIMENSIONS The ST-1KA and 1KB are high-sensitivity NPN silicon phototransistors mounted in durable, hermetically sealed TO-18 metal cans, which provide years of reliable performance, even under demanding conditions such as use outdoors. (Unit : mm) FEATURES UWide angular response U urable D UHigh reliability in demanding environments UTwo leads (Collector, Emitter) ST-1KA UThree leads (Collector Emitter, Base) ST-1KB APPLICATIONS UOptical counters UOptical detectors UInfrared sensors UFiber optic communications ST-1KA ST-1KB MAXIMUM RATINGS Item C-E voltage E-C voltage Collector current Collector power dissipation Operating temp. Storage Temp. *1 Soldering temp. (Ta=2...) 5 Symbol VCEO VECO C I PC Topr. Tstg. Tsol. Rating 40 4 50 150 -30~+100 -50~+150 260 Unit V V mA mW ... ... ... *1.For MAX.5 seconds at the position of 2 mm from the package ELECTRO-OPTICAL CHARACTERISTICS Item Collector dark current Light current C-E saturation voltage Rise time Switching speeds Fall time Spectral sensitivity Peak wavelength Half anglee (Ta=2...) 5 Symbol C I EO L I VCE(sat) tr tf *I *Ip *E Conditions VCEO=10V *2 VCE=10V, 200lx *2 C=2mA, 2,000lx I VCC=10V, C=5mA, I *y RL=100 Min. 0.5 Typ. 1 2.0 0.2 0.8 10 500~1,050 880 ae 0 5 Max. 200 5.0 0.4 Unit. nA mA V *Iec. s *Iec. s nm nm deg. *2. Color temp.=2856K standard Tungsten lamp - 1- Photo transistors ST-1KA ST-1KB Collector current Vs. Collector - Emitter voltage Collector current Vs. Illuminance Dark current Vs. Ambient temperature Relative sensitivity Vs. Wavelength Swithing time Vs. Load resistance Radiant Pattern Collector power dissipation Vs. Ambient temperature - 2- |
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