PhotoInterrupter(Transimissive) SG278 DIMENSIONS (Unit : mm) The SG278 photointerrupter high-performance standard type,combines high-output GaAs IRED with high sensitive phototransistor. FEATURES • PWB direct mount type • GAP : 3.0mm • Compact/High performance • With the installation positioning boss APPLICATIONS • • • • Printers Facsimiles Car stereo Card readers/writers MAXIMUM RATINGS (Ta=25°C) Item Power dissipation Forward current Input Reverse voltage Rating 75 Unit mW IF 50 mA VR 5 V *1 IFP 1 A Collector power dissipation PC 75 mW Collector current IC 20 mA VCEO 30 V Pulse forward current Output Symbol PD Collector-Emitter voltage Emitter-Collector voltage Operating temp. Storage temp. *2 *2 VECO 5 V Topr. -20 ~ +85 °C Tstg. -30 ~ +85 °C *3 Tsol. 260 °C Soldering temp. *1. Pulse width : tw≤100us. period T=10ms *2. No icebound or dew *3. For MAX. 5 seconds at the position of 1mm from the resin edge. ELECTRO-OPTICAL CHARACTERISTICS Item Input Output (Ta=25°C) Conditions IF=20mA Min. - Typ. 1.2 Max. 1.4 Unit. V 10 µA Forward voltage Symbol VF Reverse current IR VR=5V - - Peak wavelength λp ICEO IF=20mA - 940 - nm VCE=10V,0 lx - 1 100 nA IC IF=20mA,VCE=5V (Non-Shading) 0.7 - 14 mA ICEOD IF=20mA,VCE=5V (Shading) - 0.5 10 µA VCE(sat) IF=20mA,IC=0.1mA - 0.15 0.4 V - 4 - µs - 5 - µs Collector dark current Light current TransLeakage current mission C-E saturation voltage Rise time Fall time tr tf VCC=5V,IC=2mA,RL=100Ω -1- PhotoInterrupter(Transimissive) SG278 Forward current Vs. Forward voltage Ambient temperature Ta Forward voltage VF Forward current IF Relative light current Vs. Ambient temperature Ambient temperature Ta Collector-Emtter voltage V CE ※1 Moving distance Relative light current I L Switching time tr,tf Collector-Emtter voltage V CE Ambient temperature Ta Relative light current Vs. Switching time Vs. Dark current Vs. Ambient temperature Dark current ICEO Light Lightcurrent currentI LI L Relative light current I L Light current Vs. Collector-Emitter voltage Load resistance Light current Vs. Forward current Light current I L Forward current IF Collector power dissipation P C Collector power dissipation Vs. Ambient temperature Moving distanve l -2- ※2