ON2175

Reflective Photosensors (Photo Reflectors) ON2175 Reflective Photosensor 8.3±0.3 6.0±0.15 Tape end sensor for DAT Outline ON2175 is a sensor which consists of a high efficiency GaAs infrared light emitting diode and a high sensitivity Si phototransistor which are arranged together in the same direction. It detects the beginning and end of a tape based on changes in the amount of light reflected from a prism which is situated outside of the sensor. (R2.3) 4.0±0.3 ø2.2±0.3 2-ø1.2±0.15 (4-R0.3) 5.0 +0 –0.3 6.5±0.3 Unit : mm 3.75±0.15 5.0 min. 8.3±0.3 1.0±0.3 4.0±0.3 (C0.2) Features Fast response Small size and light weight ø1.2 +0 –0.3 2-0.4±0.2 (3.75) 2 3.0±0.3 4 Absolute Maximum Ratings (Ta = 25˚C) 3 1 1 (Note) ( ) Dimension is reference 2 3 4 Pin connection Parameter Input (Light Forward current (DC) emitting diode) Power dissipation Collector current Output (Photo Collector to emitter voltage transistor) Emitter to collector voltage Collector power dissipation Temperature *1 Symbol Ratings VR IF PD *1 Unit V mA mW mA V V mW ˚C ˚C Reverse voltage (DC) 3 50 75 20 30 5 100 –25 to +85 IC VCEO VECO PC*2 Topr Operating ambient temperature Storage temperature Tstg –30 to +100 Input power derating ratio is 1.0 mW/˚C at Ta ≥ 25˚C. *2 Output power derating ratio is 1.34 mW/˚C at Ta ≥ 25˚C. Electrical Characteristics (Ta = 25˚C) Parameter Forward voltage (DC) Input characteristics Reverse current (DC) Output characteristics Collector cutoff current Collector current...