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 C 09/2011
Page 2 of 7
Slotted Optical Switch
OPB820, OPB821Z, OPB821S
Z
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Pin #   Description   Pin #   Description
4     Cathode     2     Collector
3
Anode
1
Emitter
Color/Pin #   Description Color/Pin # Description
Green-3     Cathode     White-2     Collector
Orange-4     Anode
Blue-1
Emitter
Package Drawing
OPB820
Package Drawing
OPB821
3
1
4
2
CONTAINS POLYSULFONE
To avoid stress cracking, we suggest using
ND Industries Vibra-Tite for thread-locking.
Vibra-Tite evaporates fast without causing structural
failure in OPTEKs molded plastics.
4
1
3
2
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
24.0 [609]