Tube Liquid Sensor
OPB350 Series
OPB350
Pin #
1
2
LED
Anode
Cathode
Pin # Transistor
3
Collector
4
Emitter
1
3
Dot
Pin #
1
2
LED
Anode
Cathode
Pin # Transistor
3
Collector
4
Emitter
1
3
2
4
OPB350W187Z and OPB350W250Z
2
4
OPB350L187 and OPB350L250
Dot
Dot
Pin #
Red
Black
LED
Anode
Cathode
Pin #
White
Green
Transistor
Collector
Emitter
Red-1
White-3
Black-2
Green-4
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Issue A.4 02/06
Page 2 of 4
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