Sensing and Control
Slotted Optical Switch
OPB610, OPB611, OPB620, OPB621
• Non-contact switching
• Printed circuit board moun ng
• Enhanced signal to noise ra o
• PIN photodiode sensor for high speed (OPB611, OPB621)
• Lead centers: 0.275: (OPB61_) / 0.320” (OPB62_)
The OPB610 and OPB620 slo ed op cal switches consist of an infrared emi ng diode and an NPN silicon phototransistor
with an enhanced low current roll-oﬀ to improve contrast ra o and immunity to background irradiance.
The OPB611, OPB621 slo ed op cal switch consists of an infrared emi ng diode and a PIN photodiode with a polysulfone
housing that is opaque to visible light, but transmissive to infrared. The low tr/tf of the PIN photodiode is ideal for high-
speed opera on. The sensi vity to ambient radia on is minimized.
Custom electrical, wire and cabling and connectors are available. Contact your local representa ve or OPTEK for more
• Non-contact reﬂec ve object sensor
• Assembly line automa on
• Machine automa on
• Machine safety
• End of travel sensor
• Door sensor
Slot Width /
Lead Length /
EmiƩer / Sensor
0.150" / 0.240”
0.190" / 0.285”
0.06” / 0.06”
0.100" / 0.275"
0.100" / 0.320"
DIMENSIONS ARE IN:
TT Electronics reserves the right to make changes in product speciﬁcaƟon
without noƟce or liability. All informaƟon is subject to TT Electronics’ own data
and is considered accurate at Ɵme of going to print.
© TT electronics plc
Pin # LED Pin # Transistor / Diode
1 Anode 4
Emitter / Anode
2 Cathode 3 Collector / Cathode
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www. electronics.com
Issue E 11/2015 Page 1