$-831S20 Dual Channel Slotted Optical Switch 0.160 14.00) _, 1.086 127.58 DIMENSION CHE: we 0.140 13.86] 1068 (27.081 7] 8 ARE WY INCHES (MLLBMETERS! . | BLATE i T By GREEN . ~ t 800 (16.24) __| Uta, SENSOR OUTPUT 0.880 (14.73) 7 (CHANNEL 1) i ! | r~ WHITE mod Ze, SENSOR OUTPUT 0.300 (7.621 1.380 198.061 7h 0200 17.371 | 1860 (34.84) 4 | (CHANNEL 2 +! 04-40 SCREW | BLACK (GND! FLAT HEAD (2) 0.640 (16.28) 7 0.620 (16.76) 0.206 (6.20 0.210 (5.93) 0320 1813) _, 0.188 14.701] ~T~ 1 0.190 (4.831 0.310 (7.87) | i bo] i OPTICAL & CHANNEL 1 . - 0.130 (3.90) # 1 O.N10 (2.701 : 0.458 111.841 CANNEL 2 . 0.860 10.78) t 0.448 (11.30) i 0.640 (16.28) 1 pO ; i 0.319 [7.06) 0.266 (6.48) | . a 13.760 [349.26) 0.246 16.22) ON87 (478) y | zeawa 13.260 1996.661 - 7? STRAND i UL+420 4 Features * over/under dual channel design * medium resolution apertures sensors and IREDs apertured * {R-transparent housing! wide sensing gap Description The S-831S20 consists of a pair of IREDs and phototransistors facing each other on oppo- site sidas of a 0.200" (5.1mm) sensing slot. Over/under channel configuration allows equal resolution in sensing either rotary or lin- ear motion; dual channel design allows determination of direction of motion. For addi- tional information on motion encoding, call OptoSwitch for applications assistance. Absolute Maximum Ratings (T, = 25C unless otherwise stated.) Storage and Operating Temperature IRED Continuous Forward Current Peak Forward Current (18 pulse width, 300pps) .. Reverse Voltage Power Dissipation (@ach RED)... 00... ccc cece ccaceneeesteeseceseeseeraettatsseessasaeaeaneasaseeessses Sensor Collector-Emitter Voliage Emitter-Collector Voltage Power Dissipation (each sensor).. Notes: 1. Housing is soluble in chlorinated hydrocarbons and ketones; recommended cleaning agents are isopropanol or mathanol. 2. Derate linearly from 25C at -1.33 mMW/C. VpE- FORWARD VOLTAGE (V) Fundamental Characteristics Ip w Ts NORMALIZED |, we tp NORMALIZED I Ip - DARK CURRENT (nA) 2 0 20 Cr) 3 Ta - AMBIENT TEMP. (C) pS 25H KB KH I~ FORWARD CURRENT (ma) OptoSwitch * 1500 International Parkway, Suite 100 - Richardson, Texas 75081 - Phone: 214-479-1122 * 800-448-2900 CLAROSTAT Sensors and Controls 34 S-831S20 Dual Channel Slotted Optical Switch Cree SENSORS AND CONTROLS GROUP Electrica! Characteristica (T, = 25C unless otherwise stated) Symbol | Parameter | min | max | units |Test Conditions Input Diode Vr | Forward Voltage ) - 3.20 Vip =40mA a | Reverse Current ') : 10 HA 1V_=6.0V Output Phototransistor) Vipayceo | Collector-Emitter Breakdown Voltage 30 - Vile = 1.0mA Visryeco | Emitter-Collector Breakdown Voltage 5.0 - Vs fig = 100pA Ip Dark Current - 100 nA |Vce = 10V, E, = 0 Coupled IL [Light Current @ 400 . vA |ip = 25mA, Vog = 5V Vce(sary |Collector-Emitter Saturation Voltage - 0.4 Vs [ip = 25mA, Ip = 2502A lex | Crosstalk - 0.20 | mA |ip = 25mA, Voge = 2.0V Notes: 1. The IREDs are wired in series; the value specified for forward voltage and the bias specified for reverse leakage are twice the values expected for a single IRED. 2. Radiation outside the sensitivity range of the device may be present during these measurements. Sufficient protection has been provided when the parameter being measured cannot be altered by further irradiation shielding. 3. Other ranges of light current can be specified; cali OptoSwitch for applications assistance. 4. Crosstalk is measured by blocking the radiation exiting one IRED and measuring the value of sensor current in the same channel; sensor current in excess of ico (or Ip) is considered crosstalk. Typical Characteristics NORMALIZED I, VS. Ta tp AND ty va AL 200 [ ed i 4 mane fm be 00 oe : oY ow = Fa y 60 = WN 100 = i a = te | | | 10 ! 0 2 G 2 4 C8 8B 10 a 0 TEMPERATURE (C) LOAD RESISTANCE - (Kn) OptoSwitch 1500 International Parkway, Sulte 100 - Richardson, Texas 75081 Phone: 214-479-1122 800-448-2900 CLAROSTAT Sensors and Controls 35