OPB 740
Series Reflective Object
Sensors
Description
The OPB740 through OPB744 series of
reflective object sensors each consist of an
infrared emitting diode and an NPN silicon
phototransistor mounted side by side on
converging optical axes in an black plastic
housing. Various options include choice of
no windows, blue polysulfone windows for
dust protection or opaque windows with
offset openings for improved resolution.
Available with wires as OPB740W /
OPB744W series.
The OPB 745 reflective object sensor
consists of an infrared emitting diode and an
NPN silicon photodarlington mounted side
by side on converging optical axes in a black
plastic housing.
Replaces
OPB 740 = K8700 NO WINDOWS
OPB 741 = K8701 BLUE WINDOWS
OPB 742 = K8708 OFFSET WINDOWS
OPB 743 = K8710 NO WINDOWS
OPB 744 = K8711 BLUE WINDOWS
OPB 745 = K8709 OFFSET WINDOWS
OPB 740W = K8702 NO WINDOWS/WIRES
OPB 741W = K8703 BLUE WINDOWS/WIRES
OPB 742W = K8712 NO WINDOWS/WIRES
OPB 744W = K8713
MECHANICAL DATA
15.1+/-0.1
3.9
1.52
3.18
R1.52
A
2.54
3.1
5.0 +/-0.1
K
REFLECTIVE
17.8
+/-0.1
5
E
9.5
C
3.81
NOM
OPB740
OPB743
0.5 SQ NOM
WIRE
CONNECTION
ORANGE ANODE
GREEN
CATHODE
WHITE
COLLECTOR
BLUE
EMITTER
OPB741
OPB744
OPB742
NOTES
1
RMA Flux is recommended. Duration can be extended to 10sec. max. when flow soldering.
2
Derate Linearly 1.82mW/
o
C above 26
o
C
3
d is distance from the assembly face to the reflective surface.
4
Reflective surface is Eastam Kodak neutral white test card with 90% diffuse reflectance as a .... reflective surface.
5
Lower curve is based on calculated worst case condition rather than the conventional -20 limit.
6
Crosstalk is the photocurrent measured with current to the input diode & no reflecting surface.
7
All parameters tested using pulse technique.
BEDFORD OPTO TECHNOLOGY LTD
LINDSAYLANDS, BIGGAR, ML12 6NR
Tel: +44 (0) 1899 221221 Fax: +44 (0) 1899 221009
Website: bot.co.uk E-mail: bill@bot.co.uk
Iss A 2.3.01
1
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