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 b 10/2011 page 1 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. features: ? 0.125? (3.175 mm) slot width ? choice of aperture (0.050? or 0.010? width) ? pcboard mounting ? tx and txv devices processed to mil-prf-19500 ? s level processing available ? hermetically sealed components rohs description: each OPB870 , opb871 and opb872 (tx, txv) phototransistor device provides t he flexibility of a custom device from a standard product line. building from a st andard housing with a 0.125? (3.175 mm) wide slot and 0.425? ( mm) leads for pcboard mounting, a user can choo se aperture width, opaque or ir transmissive housing shell material and mounting tab configuration. housings are made from an opaque grade of injection-mol ded plastic to minimize sensitivity to both visible and near-infrared light. discrete shells exposed on the paralle l faces inside each device?s throat are made from either ir transmissive plastic (for applications where dust pr otection is needed) or from opaque plastic with aperture openings (for applications that require maximum protection against ambient light). tx and txv devices are processed to optek?s military screening program patterned after mil-prf-19500. please refer to application bulletins 208 and 210 for additi onal design information and re liability (degradation) data. contact your local representative or optek for more information. product photo here applications: ? non-contact object sensing ? assembly line automation ? machine automation ? equipment safety ? machine safety ? military and harsh environments l n p t
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 b 10/2011 page 2 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) 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 # emitter pin # transistor/diode 1 anode 3 collector / anode 2 cathode 4 emitter / cathode 2 4 1 3 part number guide ? OPB870, opb871, opb872 (tx, txv) opb 8 x x x x x t x v tx and txv processed to mil-prf-19500 optek assembly phototransistor output family sensor aperture: 1 ? 0.010? (0.254 mm) 5 ? 0.050? (1.270 mm) discrete shell material: 7 ? base mount opaque emitter aperture: plastic discrete shell 1 ? 0.010? (0.254 mm) pc mountable leads 5 ? 0.050? (1.270 mm) mounting configurations: n ? no mounting tabs l ? emitter side mounting tab only t ? two mounting tabs p ? phototransistor side mounting tab only electrical specification variations: 0 = electrical parameter a (lead spacing = 0.320?) 1 = electrical parameter b (lead spacing = 0.320?) 2 = electrical parameter c (lead spacing = 0.320?) note: assemblies with dual 0.010? apertures are currently available only with electrical e / clear top denotes led s / black top denotes sensor dimensions are in: inches [millimeters] contains polysulfone to avoid stress cracking, we suggest using nd industries? vibra-tite for thread-locking. vibra-tite evaporates fast without causing structur al failure in optek?s molded plastics.
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 b 10/2011 page 3 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. absolute maximum ratings (t a = 25 c unless otherwise noted) storage temperature (1) -65 c to +150 c operating temperature (1) -65 c to +125 c lead soldering temperature (3) 240 c input led forward dc current 50 ma peak forward current (1s pulse width, 300 pps) 1.0 a reverse dc voltage 2.0 v power dissipation (2) 100 mw output phototransistor/diode collector-emitter voltage 50 v emitter-collector voltage 7.0 v collector dc current 30 ma power dissipation 100 mw (2) notes: (1) derate linearly 1.00 mw/ c above 25 c. (2) cleaning agents methanol and isopropanol are recommended. spray or wipe; do not submerge. (3) rma flux is recommended. duration can be exten ded to 10 seconds maximum when flow soldering. (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 b 10/2011 page 4 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) 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 transistor/diode v f forward voltage 1.00 1.20 0.80 - - - 1.70 1.90 1.60 v i f = 20.0 ma i f = 20.0 ma, t a = -55oc i f = 20.0 ma, t a = -100oc i r reverse current - - 10 a v r = 2.0 vdc output transistor v (br)ceo collector-emitter breakdown voltage 50 - - v i c = 1.0 ma, i f = 0 v (br)eco emitter-collector breakdown voltage 7.0 - - v i e = 100 a, i f = 0 i c(off) collector-emitter dark current - - 100 100 na a v ce = 10.0 v, i f = 0 v ce = 10.0 v, i f = 0, t a = 100oc coupled i c(on) on-state collector current (4) parameter a OPB870 OPB870 OPB870 500 200 200 - - - - - - a v ce = 10.0 v, i f = 20.0 ma v ce = 10.0 v, i f = 20.0 ma, t a = -55oc v ce = 10.0 v, i f = 20.0 ma, t a = 100oc parameter b opb871 opb871 opb871 1000 400 400 - - - - - - a v ce = 5.0 v, i f = 10.0 ma v ce = 5.0 v, i f = 10.0 ma, t a = -55oc v ce = 5.0 v, i f = 10.0 ma, t a = 100oc parameter c opb872 opb872 opb872 1800 800 800 - - - - - - a v ce = 0.4 v, i f = 20.0 ma v ce = 0.4 v, i f = 20.0 ma, t a = -55oc v ce = 0.4 v, i f = 20.0 ma, t a = 100oc v ce(sat) collector-emitter sa turation voltage OPB870 opb871 opb872 - - - - - - 0.30 0.30 0.30 v i c = 400 a, i f = 20.0 ma i c = 800 a, i f = 10.0 ma i c = 1800 a, i f = 20.0 ma t r output rise time OPB870 opb871 opb872 - - - - - - 15.0 20.0 20.0 s v cc = 10.0 v i f = 20.0 ma r l = 1000 ? t f output fall time OPB870 opb871 opb872 - - - - - - 15.0 20.0 20.0 s v cc = 10.0 v i f = 20.0 ma r l = 1000 ?
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 b 10/2011 page 5 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb370n51 - 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 righ t right to left to p to bottom aperture configuration 51 - flag next to emitter opb370n51 - 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 h t right to left to p to bottom aperture configuration 51 - flag next to sensor opb370n51 - 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 righ t right to left to p to bottom aperture configuration 51 - flag in middle of slot 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 b 10/2011 page 6 of 6 high reliability slotted optical switch OPB870, opb871, opb872 (tx, txv) optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. opb380t55 - 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 righ t right to left to p to bottom aperture configuration 55 - flag next to emitter opb380t55 - 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 righ t right to left to p to bottom aperture configuration 55 - flag next to sensor opb380t55 - 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 righ t right to left to p to bottom aperture configuration 55 - flag in middle of slot emitter sensor left to right right to left 0 width top to bottom 0
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