LBT-125

Subminiature Photointerrupter Model No: LBT-125 Features ˙Compact package based on the double-mold method. ˙High resolution (slit width = 1.2mm). ˙Gap between emitter and detector is 2.0mm. Applications ˙Floppy disk drives ˙Printers ˙Cameras Outline Dimensions (Unit: mm) --1-- Letex Technology Corp. Subminiature Photointerrupter Model No: LBT-125 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Rating Forward current IF 50 Reverse voltage VR 5 Input Peak forward current IFP 1 Power dissipation Collector current Collector-Emitter voltage Output Emitter-Collector voltage Collector power dissipation Storage Temperature Operating Temperature Soldering Temperature Pd Ic Vceo Veco Pc Tstg Top Tsol 75 50 30 5 100 -40 to +85 -25 to +85 260 Units mA V A mW mA V V mW ℃ ℃ ℃ Note Tw=10μs, t=10ms 5 seconds max. Electrical Specifications (Ambient Temperature: 25℃) Item Symbol MIN. Forward voltage VF Reverse current IR Input Peak wavelength λp View angle 2θ1/2 Dark current Iceo Output C-E saturation voltage Vce(sat) Light current Ic(on) 0.5 Leakage current ILeak Rise Time tr Speed Fall Time tf TYP. 1.2 940 35 MAX. 1.4 10 100 0.4 1 5 5 Units V µA nm Deg. nA V mA µA µs Conditions IF=20mA VR=5V IF=20mA Vce=20V Ic=2mA, IB=0.1mA Vce=5V IF=20mA Vce=5V Ic=1mA RL=1KΩ --2-- Letex Technology Corp. Subminiature Photointerrupter Reference Data Fig.1 Forward Current vs. Ambient Temperature Fig.2 Collector Power Dissipation vs. Ambient Temperature Fig.7 Collector Current vs. Ambient Temperature Fig.8 Collector-Emitter Saturation Voltage vs. Ambient Temperature Collector power dissipation Pc (mW) IF=20mA Vce=5V Collector current IC (mA) Collector-Emitter saturation voltage Vce (sat) (V) IF=40mA Ic=0.5mA Forward current IF (mA) Ambient temperature Ta (℃) Ambient temperature Ta (℃) Ambient temperature Ta (℃) Ambient temperature Ta (℃) Fig.3 Peak Forward Current vs. Duty Ratio Fig.4 Forward Current vs. Forward Voltage Fig.9 Response Time vs. Load Resistance Fig.10 Collector Dark Current vs. Ambient Temperature Peak forward current IFM (mA) Pulse width ≦100μs Ta=25℃ Forward current IF (mA) Ta=25℃ Response time (μs) Vce=2V Ic=2mA Ta=25℃ Collector dark current Iceo (A) Vce=20V Duty ratio Forward voltage VF (V) Load resistance R L (KΩ) Ambient temperature Ta (℃) Fig.5 Collector Current vs. Forward Current Fig.6 Collector Current vs. Collector-Emitter Voltage Fig.11 X Ta=25℃ RElative Collector current Iceo (%) Relative Collector Current vs. Shield Distance IF=20mA Vce=5V Ta=25℃ Test Circuit for Response Time Y Vce=5V Ta=25℃ Collector current IC (mA) Collector current IC (mA) Forward current IF (mA) Collector-Emitter voltage Vce (V) Shield distance L (mm) --3-- Letex Technology Corp.