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.1 11/08 page 1 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb420bz features: ? non-contact switching ? right angle sensor: led in tower, photosensor in base ? choice of output configuration ? optical line can be broken in three axis ? 24? minimum, 26 awg ul approved wire leads description: the opb420 series optical switch consists of an infrared em itting diode (led) and a phototransistor. the led is mounted on the tower with the phototransistor mounted on t he base of a right angle shape package. the l-shape or right angle package configuration allows for an opaque object to block the light beam from a multitude of directions including the x-axis y-axis and z-axis. the optical center line between the emitter and photosensor is at 45 from the mounting base of the device. the OPB420AZ utilizes a phototransistor with a current output proportional to the input drive current of the led. the opb420bz utilizes a phototransistor with a base-emitter resistance (r be ) which provides protection from low level light conditions. the opb420bz is ideal for applications that require an enhanced contrast ratio and immunity to background irradiance, such as detection of semi- transparent media. custom electrical, wire and cabling and connectors are ava ilable. contact your local representative or optek for more information. product photo here applications: ? non-contact interruptive object sensing ? tray-out sensor ? low paper tray sensor ? corner sensor ? printers ? copying machines ? paper sorting equipment ? amusement gaming equipment ? door sensor ? optical switch rohs part # led wavelength photosensor OPB420AZ 880 nm phototransistor opb420bz r be phototransistor OPB420AZ opb420bz
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.1 11/08 page 2 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb42bz mechanical package information description wire color anode red cathode black collector white emitter green dimensions are in inches [millimeters] tolerances 0.010? [0.25mm]
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.1 11/08 page 3 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb420bz notes: (1) rma flux is recommended. duration can be extended to 10 seconds maximum when flow soldering. (2) derate linearly 1.67 mw/c above 25 c.. (3) methanol or isopropanol are recommended as cleaning agents. pl astic housing is soluble in ch lorinated hydrocarbons and ket ones. (4) all parameters were tested using pulse technique. (5) simulated optical path blocked wi th infrared semi-transparent object electrical characteristics (t a = 25 c unless otherwise noted) symbol parameter min typ max units test conditions input diode (see op240 or op265 for additional information) v f forward voltage 1.2 - 1.7 v i f = 20 ma i r reverse current - - 100 a v r = 2 v output phototransistor (see op505 or op705 for additional information) v (br)ceo collector-emitter breakdown voltage OPB420AZ opb420bz 30 24 - - - - v i c = 1 ma i c = 100 a v (br)eco emitter-collector breakdown voltage OPB420AZ opb420bz 5.0 0.4 - - - - v i e = 100 a i ceo collector-emitter dark current - - 100 na v ce = 10 v, i f = 0, e e = 0 combined v ce(sat) collector-emitter saturati on voltage - - 0.4 v i c = 250 a, i f = 20 ma i c(on) on-state collector current 1.0 - 10.0 ma v ce = 5.0 v, i f = 20 ma i c(off) off-state collector current? opb420bz - - 450 a v ce = 5 v, i f = 1 ma (5) phototransistor version absolute maximum ratings (t a =25c unless otherwise noted) storage & operating temperature range -40 c to +85 c lead soldering temperatur e [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron] (1) 260 c input diode continuous forward current 50 ma peak forward current (1 s pulse width, 300 pps) 1 a reverse voltage 2 v power dissipation (2) 100 mw output phototransistor power dissipation (2) 100 mw collector-emitter breakdown voltage OPB420AZ opb420bz 30 v 24 v
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.1 11/08 page 4 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb42bz typical output current vs forward current 0% 25% 50% 75% 100% 125% 150% 175% 200% 225% 250% 0 5 10 15 20 25 30 35 40 45 50 i f - forward current -ma normalized output current - % v ce = 5 v dc , ta = 25c normalized to i f = 20 ma r be phototransistor phototransistor typical output current vs distance (z axis blocked) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 0.22 0.24 0.26 blocking distance - inches normalized output current - % v ce = 5 v dc i f = 20 ma z-flag direction typical output current vs forward current 0% 2% 4% 6% 8% 10% 12% 14% 16% 18% 20% 0.0 1.0 2.0 3.0 4.0 5.0 i f - forward current - ma normalized output current - % normalized to if = 20ma and v ce = 5vdc at t a = 25 OPB420AZ - phototransistor opb420bz - r be phototransistor
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.1 11/08 page 5 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb420bz typical output current vs distance (y-axis blocked) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.00 0.10 0.20 0.30 0.40 0.50 0.60 blocking distance - inches normalized output current - % v ce = 5v dc i f = 20 ma flag at 0.4" flag at 0.2" flag at 0.0" x-flag direction y-flag direction typical output current vs distance x-axis blocked 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 blocking distance - inches normalized output current -% v ce = 5v dc i f = 20ma flag at 0.00 flag at 0.15 flag at 0.30
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.1 11/08 page 6 of 6 optek reserves the right to make changes at any time in or der to improve design and to s upply the best product possible. slotted optical switch OPB420AZ & opb42bz typical collector current vs collector to emitter voltage 0% 25% 50% 75% 100% 125% 150% 175% 200% 225% 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 vce - collector to emitter voltage - volts normalized collector current % normalized to i f = 20ma and v ce = 5 vdc i f =40ma i f =35ma i f =30ma i f =25ma i f =20ma i f =15ma i f =10ma i f =5ma typical output current vs ambient temperature 0% 20% 40% 60% 80% 100% 120% -40-30-20-10 0 1020304050607080 ambient temperature (c) normalized output current normalized for each i f current at v cc = +5 v dc and t a = 20c i f = 20 ma and 40 i f = 5 ma
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