OPTEK Technology Inc. 1645 Wallace Drive, Carrollton, Texas 75006
Phone: (972) 323-2200 or (800) 341-4747    FAX: (972) 323-2396 sensors@optekinc.com www.optekinc.com
Issue A 12/06
Page 1 of 3
Slotted Optical Flag Switch
OPB680, OPB680-20, OPB690Z
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Features:
" Phototransistor output
" Mechanical switch replacement
" Enhanced signal to noise ratio
" Printed PCBoard mounting (OPB680, OPB680-20)
" Lever force options(OPB680, OPB680-20)
" 3-pin connector, 0.98 (2.5mm) Mates with Molex 22-01-1032
and terminal #08-70-0069
Description:
Each OPB680, OPB680-20 and OPB690Z optical flag switch consists of an infrared emitting diode in a molded
plastic housing. The phototransistor has an enhanced low current roll-off that improves contrast ratio and
immunity to background irradiance.
A lever arm actuated flag interrupts the light beam and switches the output between states that can readily drive
logic gates. This can be actuated by passing a paper sheet without damaging the papers edge.
OPB680-20 offers increased lever operating force that prevents false triggering due to incidental contact in door
sensing and other heavy-duty applications.
OPB690Z is designed to easily snap mount into a 0.037 ?/SPAN> 0.001 (0.940 mm ?/SPAN> 0.025 mm) thick material with a
rectangular opening of 0.320 ?0.003 x 0.472 (8.128 mm x 11.989 mm) minimum. Insertion into the punched
side of metal is recommended.
Customized lever arms and spring torques can be designed for specific applications for each of the devices.
Custom electrical, wire, cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
" Mechanical switch replacement
" Speed indication (tachometer)
" Mechanical limit indication
" Edge sensing
Ordering Information
Part
Number
LED Peak
Wavelength
Sensor
Flag Travel
Degrees
Max
Lead Length /
Spacing or
Connector
OPB680
Rbe
Transistor
51?
0.100" / 0.275"
OPB680-20
OPB690Z
70?
Molex 5102
890 nm
OPB690
OPB680
RoHS