LBT125 LETEX | Alldatasheet

Document overview

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Technical content

Features

˙Compact package based on the double-mold method. ˙High resolution (slit width = 0.3mm). ˙Gap between emitter and detector is 1.2mm.

Applications

˙Floppy disk drives ˙Printers ˙Cameras Outline Dimensions (Unit: mm) 22,85 3,4

1 Cathode

2 Anode

3 Collector

4 Emitter

CO.3 A 3,3 4,7 MIN 5 4-0,15 0,9 1,2 3,7 4-0,4 3,4 0,3 CO.7 Optical center A-A ' SECTION

-- 2-- Letex Technology Corp. Subminiature Photointerrupter Model No: LBT-125 Absolute Maximum Ratings (Ambient Temperature: 25℃) Item Symbol Rating Units Note Forward current I F 50 mA Reverse voltage V R 5 V Input Power dissipation P D 75 mW Collector-emitter voltage V ceo 30 V Emitter-collector voltage Veco 4.5 mA Output Collector power dissipation P C 80 mW Storage Temperature Tstg -40 to +100 ℃ Operating Temperature Top -25 to +85 ℃ Soldering Temperature Tsol 260 ℃ 10 seconds max. Electrical Specifications (Ambient Temperature: 25℃) Item Symbol Min. Typ. Max. Units Conditions Forward voltage V F 1.2 1.4 V IF=20mA Peak forward voltage V FM 3 4 V IFM =0.5A Input Reverse current I R 10 µA VR=5V Collector dark current Iceo 0.5 µA Vce=10V Collector-emitter breakdown voltage BVceo 30 V Ice=50 µA Output Emitter-collector breakdown voltage BVeco 4.5 V Iec=50 µA Collector current Ic 0.5 mA Vce=5V, I F=20mA Collector-emitter saturation voltage Vce(sat) 0.4 V IF=20mA, Ic=0.3A Combi nation Response time Tr/tf 10 µs IF=5mA, Vcc=5V, RL=100Ω

-- 3-- Letex Technology Corp. Subminiature Photointerrupter Reference Data Relative collector current Vs. Shield distance IF = 20mA Vce = 5V Ta=25° Collector current Vs. Forward current Response time Vs. Load resistance Collector current Vs. Ambient temperature 0.15 Relative collector current ( %) C-E Saturation voltage (V) 0.05 -25 0.10 Ambient temperature ( )℃ 0 25 50 75 100 Shield distance (mm) -2 0 -1 -2 2 1 0 -1 1 C-E Saturation voltage Vs. Ambient temperature 0.25 0.20

0.30 Collector current (uA)

-25 IF = 40mA Ic=1mA 100 Ambient temperature ( )℃ 25 0 75 50 100 IF = 20mA Vce = 5V tr Response time ( μs) 0.2 Load resistance (k Ω ) 0.2 0.03 0.1 0.05 0.1 0.5 td 2 1 0.5 10 5 ts 500 200 100 Vce = 2V Ic = 2mA Ta = 25℃ tf Forward current (mA) 100 200 500 Collector current (mA) Forward voltage (V) 0 10 Forward current (mA) 20 40 25℃ 25℃ Ta = 75℃ 50℃ 0℃ Forward current Vs. Forward voltage Vce = 5V Ta = 25℃ 8 Forward current (mA) -30 Ambient temperature ( )℃ 0 25 50 75 100 125 Power dissipation (mW) Ambient temperature ( )℃ -25 0 25 50 75 100 100 Forward current Vs. Ambient temperature Collector dark current Vs. Ambient temperature Vcc Test circuit for resopnse time RDInput Output Output Input RL 90% 10% Ambient temperature ( )℃ Collector dark current (A) -25 -11 10 -10 10 -9 10 -8 10 -7 10 -6 10 -5 10 50 100 75 Vce = 20V 20mA Collector current (mA) IF=10mA Collector-Emitter voltage (V) 1 0 3 2 4 6 5 7 9 8 10 Collector current Vs. Collector-Emitter voltage Ta = 25℃ 40mA 30mA 50mA 10 -2 Duty ratio 100 Peak forward current ( mA ) 125 10 5 -3 2 5 200 500 2000 1000 2 10 5 5 2 10 0 Pulse width 100us Ta = 25 Peak forward current Vs. Duty ratio