RPI-131 sensors photointerrupter, double-layer mold type RPI-131 the RPI-131 is an ultra-small size, double-layer photointerrupter. z z z z applications optical control equipment cameras floppy disk drives z z z z features 1) ultra-small. 2) minimal influence from stray light. 3) low collector-emitter saturation voltage. z z z z external dimensions (units : mm) (2.5) 0.5 1.5 0.4 cross-section a-a (1.2) c0.5 2 ? 0.2 (3.2) 1.3 1 (1.5) min.5 5.2 2.8 1.2 4.2 4.2 cathode anode collector emitter a a + 0.1 ? 0 optical axis center notes: 1. unspecified tolerance shall be 0.2. 2. dimension in parenthesis are show for reference. z z z z absolute maximum ratings (ta = 25 c) parameter symbol i c v ceo p d v r i f p c v eco topr tstg limits ? 25~ + 85 ? 40~ + 100 50 5 80 30 4.5 30 80 unit ma v mw v v ma mw c c forward current reverse voltage power dissipation collector-emitter voltage emitter-collector voltage collector current collector power dissipation operating temperature storage temperature input ( led ) output photo- transistor ( )
RPI-131 sensors z z z z electrical and optical characteristics (ta = 25 c) parameter symbol v f i r i ceo p i c1 v ce(sat) t r t f min. ? ? ? ? 0.7 ? ? typ. 1.3 ? ? 800 ? ? 10 max. 1.6 10 0.5 ? ? 0.3 ? unit v i f = 50ma v r = 5v v ce = 10v ? v ce = 5v, i f = 20ma i f = 20ma, i c = 0.3ma v cc = 5v, i f = 20ma, r l = 100 ? a a nm ma i c2 0.2 ?? v ce = 5v, i f = 5m ma v s conditions forward voltage input charac- teristics output charac- teristics transfer charac- teristics response time collector-emitter saturation voltage collector current peak sensitivity wavelength dark current reverse current z z z z electrical and optical characteristic curves power dissipation / collector power dissipation : p d / p c (mw) ambient temperature : ta ( c) ? 20 0 40 60 80 20 100 0 20 40 60 80 100 120 fig.1 power dissipation / collector power dissipation vs. ambient temperature p d p c forward current : i f (ma) forward voltage : v f (v) 0 10 20 30 40 50 0.4 0.2 0.6 0.8 1.0 1.2 1.4 1.6 1.8 fig.2 forward current vs. forward voltage 75 c 50 c 25 c 75 c ? 25 c fig.3 collector current vs. forward current collector current : i c (ma) forward current : i f (ma) 0 1020304050 0 1 2 3 4 5 ambient temperature : ta ( c) 100 ? 25 0 25 50 75 0.1 1 10 100 1000 v ce = 30v v ce = 20v v ce = 10v fig.4 dark current fig.4 vs. ambient temperature dark current : i ceo (na) relative collector current : i c (%) ambient temperature : ta ( c) ? 40 ? 20 0 20 40 60 80 100 20 40 60 80 160 100 120 140 0 fig.5 relative output vs. ambient temperature relative collector current : i c (%) distance : d (mm) 123456 0 0 20 40 60 100 80 d fig.6 relative output current vs. distance shield plate
RPI-131 sensors collector current : i c (ma) fig.7 response time vs. collector current 10 100 0.1 1 1 10 100 1000 response time : t r ( s) r l = 500 ? r l = 1k ? r l = 100 ? ta = 25 c v cc = 5v ambient temperature : ta ( c) ? 20 0 20 40 60 80 100 10 50 40 30 20 0 forward current : i f (ma) fig.8 forward current falloff collector current : i c (ma) collector-emitter voltage : v ce (v) 10 0 2 1 0 4 i f = 25ma 20ma 15ma 10ma 5ma 3 2468 fig.9 output characteristics t d t r t f 10% 90% r l v cc t d : t r : t f : delay time rise time (time for output current to rise from 10% to 90% of peak current) fall time (time for output current to fall from 90% to 10% of peak current) fig.10 response time measurement circuit input input output output
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