OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 B 10/2010
Page 1 of 4
Slotted Optical Switch
OPB610, OPB611, OPB620, OPB621
Features:
• Non-contact switching
• Printed circuit board mounting
• Enhanced signal to noise ratio
• PIN photodiode sensor for high speed (OPB611, OPB621)
• Lead centers: 0.275” (OPB61_ ) / 0.320” (OPB62_ )
• Gap: 0.150” (OPB61_ ) / 0.190” (OPB62_ )
Description:
The OPB610 and OPB620 slotted optical switches consist of an infrared emitting diode and an NPN silicon
phototransistor with an enhanced low current roll-off to improve contrast ratio and immunity to background
irradiance.
The OPB611, OPB621 slotted optical switch consists of an infrared emitting 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 operation. The sensitivity to ambient radiation is minimized.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for
more information.
Applications:
• Non-contact reflective object sensor
• Assembly line automation
• Machine automation
• Machine safety
• End of travel sensor
• Door sensor
OPB610, OPB611
Ordering Information
Part
Number LED Peak
Wavelength
Sensor Slot Width /
Depth Aperture
Emitter / Sensor Lead Length /
Spacing
OPB610
890 nm
Rbe Transistor
0.150" / 0.240”
0.06” / 0.06”
OPB611 Diode
OPB620 Rbe Transistor
0.190" / 0.285” 0.100" / 0.320"
OPB621 Diode
0.100" / 0.275"
RoHS
OPB610, OPB620
2
1
3
4
2
1
3
4
OPB611, OPB621
Pin # LED Pin # Transistor / Diode
1 Anode 4 Emitter / Anode
2 Cathode 3 Collector / Cathode
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
OPB620, OPB621
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 B 10/2010
Page 2 of 4
Slotted Optical Switch
OPB610, OPB611, OPB620, OPB621
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Input Diode (See OP240 for additional information)
VF
Forward Voltage
OPB610, OPB620
OPB621
-
1.15
-
-
1.6
1.45
V
V
IF = 10 mA
IF = 10 mA
IR Reverse Current - - 100 µA VR = 3 V
Output Phototransistor (OPB610, OPB620) (See OP505 for additional information)
V(BR)CEO Collector-Emitter Breakdown Voltage 24 - - V IC = 100 µA
BVECO Emitter-Collector Breakdown Voltage 0.4 - - V ICE = 100 µA
ICEO Collector-Emitter Dark Current - - 100 nA VCE = 5 V
Output Photodiode (OPB611, OPB621) (See OP999 for additional information)
ID Dark Current - - 65 nA VR = 30 V, EE = 0 mW
V(BR)R Reverse Breakdown Voltage 60 - - V IR = 100 µA, EE = 0 mW
VF Forward Voltage - - 1.0 V IF = 1 mA, EE = 0 mW
Combined
VSAT Collector-Emitter Saturation Voltage
OPB610, OPB620
-
-
0.4
V
IF = 5 mA, IC = 100 µA
IC(ON)
On-State Collector/Diode Current
OPB610, OPB620
OPB611, OPB621
1
9
-
-
-
90
mA
µA
IF = 5 mA, VCE = 5 V (gap unblocked)
VR = 5 V, IF = 20 mA (gap unblocked)
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering. A maximum of 20 grams
force may be applied to leads when soldering.
(2) Derate linearly 1.33 mW/°C above 25 ° C.
(3) Derate linearly 2.0 mW/°C above 25 ° C.
Absolute Maximum Ratings (TA=25°C unless otherwise noted)
Storage and Operating Temperature Range -40°C to +100° C
Lead Soldering Temperature [1/16 inch (1.6mm) from the case for 5 sec. with soldering iron](1) 260° C
Input Diode
Forward DC Current 50 mA
Peak Forward Current (1 μs pulse width, 300 pps) 3 A
Reverse DC Voltage 3 V
Power Dissipation(2) 100 mW
Output Photodiode (OPB621)
Reverse Breakdown Voltage 60 V
Power Dissipation 100 mW
Output Phototransistor (OPB610, OPB620)
Collector-Emitter Voltage 24 V
Emitter-Collector Voltage 10 mA
Collector DC Current 30 mA
Power Dissipation(3) 200 mW
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 B 10/2010
Page 3 of 4
Slotted Optical Switch
OPB610, OPB611, OPB620, OPB621
OPB610 - Flag in Middle of Slot
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Distance (inches)
Normalized I
C(ON)
Response
Left to Right Right to Left
Top to Bottom
OPB610 - Flag Next to Emitter
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Di s tance (inches)
Normalized I
C(ON
Response
Left to Right Right to Left
Top to Bottom
OPB610 - Flag Next to Sensor
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Distance (inches)
Normalized I
C(ON
Response
Left to Right Right to Left
Top to Bottom
Emitter
Sensor
Left to Right Right to Left
0Width
Top to Bottom
0
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
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 B 10/2010
Page 4 of 4
Slotted Optical Switch
OPB610, OPB611, OPB620, OPB621
OPB620 - Fl ag in Mi ddl e o f Sl ot
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Distance (inches)
Normalized I
C(ON)
Response
Left to Ri
g
ht Right to Left
To
p
to Bottom
OPB620 - Flag Next to S ens or
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Distance (inches)
Normalized I
C(ON)
Respone
Left to Right Right to Left
Top to Bottom
OPB620 - Flag Next to Emitter
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20
Displacement Distance (inches)
Normalized I
C(ON)
Response
Left to Right Right to Left
Top to Bottom
Emitter
Sensor
Left to Right Right to Left
0Width
Top to Bottom
0
