optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. 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 12/06 page 1 of 3 long distance reflective switch opb725 description: opb725 uses an infrared led and photologic? sensor in a refl ective switch configuration. the assembly is offered with a standard wire length of 48? [122 cm], and uses an opaque housing to reduce the sensor?s ambient light sensitivity. the emitter and sensor are protected by a window clear to near infrared wavelengths, providing a device that can operate in a dusty environment. the photologic? sensor ha s an npn open-collector output providing the user a device that can be used in a variety of applications. while an object is in the reflective path of the device, light from the led will be reflected back to the housing irradiating the surface of the photologic? sensor causing t he output npn transistor to turn ?on? to provide a ?low? voltage output when connected to appropriate value pull-up re sistor. when the infrared light from the led is not being reflected to the photologic sensor, the output transistor turns ?off,? minimizing the i c(on) current, providing a ?high? output. custom electrical, cabling and connectors are available. contact your local represen tative or optek for more information. features: ? remote mounting in 18 mm hole ? 48? (122 cm) 26 awg wired with mounting nuts ? non-contact infrared switch ? up to 24? or more reflective distance depending on object ordering information part number led peak wavelength wire length / size OPB725A-18Z 850 nm 48" / 26 awg wire applications: ? non-contact reflecti ve object sensor ? assembly line automation ? machine automation ? equipment security ? door sensor ? machine safety ? end of travel sensor dimensions are in: inches [ millimeters] rohs wire color function red vcc black ground white inverted open collector pin out
optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. 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 12/06 page 2 of 3 long distance reflective switch opb725 electrical characteristics (t a = 25 c unless otherwise noted) notes: (1) rma flux is recommended. duration can be exten ded to 10 seconds maximum when flow soldering. (2) methanol or isopropanol are recommended as cleaning agents. t he plastic housing is soluble in chlorinated hydrocarbons and keytones. symbol parameter min typ max units conditions output photologic ? v oh high level output voltage 22 - - v v cc = 24 v, rl = 10 k, (no target) v ol low level output voltage - - 0.8 v v cc = 24 v, rl = 10 k, d = 12? (90% reflective surface kodak?ek e 152 7798) combined trip point distance typical distance with gain at minimal value (counter-clockwise) - 13 - inches target size 8?x8? [20cmx20cm] typical distance with gain in center position. - 18 - typical distance with gain at maximum value (clockwise) - 23 - absolute maximum ratings (t a =25c unless otherwise noted) operating temperature range 0 c to + 50 c storage temperature range -40 c to + 80 c lead soldering temperature (1/16? (1.6 mm) from case for 5 seconds with soldering iron) 260 c (1, 2) supply voltage (v cc ) 18 v to 24 v maximum collector voltage 30 v collector dc current (sink) 50 ma power dissipation 250 mw
optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. 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 12/06 page 3 of 3 long distance reflective switch opb725 typical switching characteristics 0 1 0 5 10 15 20 25 30 35 40 45 distance (inches) state min sen toward min sen away center sen toward center sen away max sen toward max sen away target 8?x8? [20cmx20cm]
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