optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 1 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. description: each opb820 and opb821 device consists of an infrared emitting di ode (led, 890 nm center wavelength) and a npn silicon phototransistor mounted in a low-cost black plastic housing on op posite sides of an 0.080? (2.03 mm) wide slot. each device in this series has a 0.040? (1.02 mm) wide aperture located in front of the infrared diode. phototransistor switching occurs when an opaque object passes through the slot. devices are offered with 0.275? (6.96 mm) lead spacing for pcboard mounting ( opb820 ) or 24? (610 mm) 26 awg wire leads ( opb821 ). custom electrical, wire and cabling and connectors are ava ilable. contact your local representative or optek for more information. features: ? non-contact switching ? four standard aperture sizes for high resolution ? low profile ? 0.080? (2.03 mm) wide, 0.250? (8.89 mm) deep slot ? choice of pcboard or wire mountings product photo here rohs opb821 applications: ? non-contact object sensing ? assembly line automation ? machine automation ? equipment safety ? machine safety ordering information part number led peak wavelength sensor slot width / depth aperture emitter/sensor lead length / spacing opb820 890 nm transistor 0.080" / 0.255? 0.04"/ 0.04" 0.425" / 0.275" opb820s10 0.04"/ 0.01" opb820s5 0.04"/ 0.005" opb820s3 0.04"/ 0.003" opb821z 0.040"/ 0.040" 24"/26 awg wire OPB821S10Z 0.040"/ 0.010" opb821s5z 0.040"/ 0.005" opb821s3z 0.040"/ 0.003" opb820
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 2 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. pin # description pin # description 4 cathode 2 collector 3 anode 1 emitter color/pin # description color/pin # description green-3 cathode white-2 collector orange-4 anode blue-1 emitter package drawing opb820 package drawing opb821 3 1 4 2 contains polysulfone to avoid stress cracking, we suggest using nd industries? vibra-tite for thread-locking. vibra-tite evaporates fast without causing structural failure in optek?s molded plastics. 4 1 3 2 dimensions are in: inches [ millimeters] 24 [610]
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 3 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. electrical characteristics (t a = 25 c unless otherwise noted) symbol parameter min typ max units test conditions input diode (see op245 for additional information) v f forward voltage - - 1.7 v i f = 20 ma i r reverse current - - 100 a v r = 2 v output phototransistor (see op555 for additional information) v (br)ceo collector-emitter breakdown voltage 30 - - v i c = 1 ma v (br)eco emitter-collector breakdown voltage 5 - - v i e = 100 a i ceo collector-emitter dark current - - 100 na v ce = 10 v, i f = 0, i e = 0 coupled v ce(sat) collector-emitter sa turation voltage opb820, opb821 opb820s3, opb821s3 opb820s5, opb821s5 opb820s10, opb821s10 - - - - - - - - 0.4 0.4 0.4 0.4 v v v v i c = 250 a, i f = 20 ma i c = 40 a, i f = 20 ma i c = 125 a, i f = 20 ma i c = 250 a, i f = 20 ma i c(on) on-state collector current opb820, opb821 opb820s3, opb821s3 opb820s5, opb821s5 opb820s10, opb821s10 500 60 300 400 - - - - - - - - a a a a v ce = 5 v, i f = 10 ma v ce = 5 v, i f = 10 ma v ce = 5 v, i f = 10 ma v ce = 5 v, i f = 10 ma absolute maximum ratings (t a =25c unless otherwise noted) storage and operating tem perature -40c to +85c lead soldering temperature (1/16 inch [1.6 mm] from case for 5 seconds with soldering iron) (1) 260c input diode continuous forward current 50 ma peak forward current (1s pulse width, 300 pps) 3 a reverse voltage 2 v power dissipation (2) 100 mw output phototransistor collector-emitter voltage 30 v emitter-collector voltage 5 v power dissipation (2) 100 mw notes: (1) rma flux is recommended. duration can be exten ded to 10 seconds maximum when flow soldering. (2) for opb820, derate linearly 1.67 mw/ c above 25 c. for opb821, derate linearly 1.82 mw/ c above 25 c. (3) methanol or isopropanol are recommended as cleaning agents. pl astic housing is soluble in chlorinated hydrocarbons and ketones. (4) all parameters were tested using pulse technique.
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 4 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb820 - flag next to emitter 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) normalized i c(on) response to p to bottom right to left left to right emitter sensor left to right right to left 0 width top to bottom 0 opb820 - flag next to sensor 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) normalized i c(on) response to p to bottom right to left left to right opb820 - flag in middle of slot 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) normalized i c(on) response to p to right to left left to right
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 5 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb820s3 - flag in middle of slot 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) to p to bottom left to right right to left opb820s3 - flat next to sensor 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to right right to left to p to bottom opb820s3 - flag next to emitter 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) to p to bottom right to left left to right emitter sensor left to right right to left 0 width top to bottom 0
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 6 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb820s5 - flag next to emitter 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to right right to left to p to opb820s5 - flag next to sensor 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to ri g ht ri g ht to left to p to opb820s5 - flag in middle slot 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to right right to left to p to emitter sensor left to right right to left 0 width top to bottom 0
optek technology inc. ? 1645 wallace drive, carrollton, texas 75006 phone: (972) 323-2200 or (800) 341-4747 fax: (972) 3 23-2396 sensors@optekinc .com www. optekinc.com issue a .3 04/07 page 7 of 7 slotted optical switch opb820, opb821z, opb821s z optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb820s10 - flag next to sensor 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to ri g ht ri g ht to left to p to bottom opb820s10 - flag in middle of slot 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to right right to left to p to opb820s10 - flag next to emitter 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0.00 0.05 0.10 0.15 0.20 0.25 displacement distance (inches) typical i c(on) response (ma) left to ri g ht ri g ht to left to p to emitter sensor left to right right to left 0 width top to bottom 0
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