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 01/2012
Page 1 of 5
Slotted Optical Switch
OPB827, OPB828, OPB829Z Series
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Features:
• 0.125” (3.18 mm) wide, 0.215” (5.46 mm) deep slot
• 0.305” (7.75 mm) lead spacing (OPB827)
• 0.220” (5.59 mm) lead spacing (OPB828)
• 24-inch 26 AWG wire leads (OPB829)
• Inexpensive plastic housing
Product Photo Here
Applications:
• Non-contact object sensing
• Assembly line automation
• Machine automation
• Equipment safety
• Machine safety
RoHS
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 OPTEK’s molded plastics.
Applies to: OPB360, OPB370, OPB380, OPB390
and OPB860, OPB870, OPB880, OPB890.
Description:
Each OPB827, OPB828 and OPB829 d evice consists of an infrared emitting diode (LED, 890 nm center
wavelength) and a NPN silicon phototransistor, mount ed on opposite sides of a 0.125” (3.18 mm) wide slot in a
low-cost black plastic housing. A variety of aperture sizes are offered (see chart below). The OPB927 and
OPB828 are designed for PCBoard mounting with a minimum lead length of 0.35” (8.9 mm) while the OPB829Z
(wire version) has 24-in ch 26 AWG wire leads. Phototransistor switching occurs when an opaque object passes
through the slot.
The OPB827 is offered with 0.305” (7.7 5 mm) and the OPB828 is offered with 0.220” (5.59 mm) lead spacing for
PCBoard mounting. The OPB829Z ha s 24” (61 cm) 26 AWG wire leads for remote mounting.
Custom electrical, wire an d cabling and connectors a re available. Contact your local rep re sentative or OPTEK for
more information.
Ordering Information
Part Number Slot Width/
Depth Housing
Aperture
Emitter/Sensor Wire Lead
Length / Spacing
OPB827A
0.120" / 0.315”
IR Transmissive None
0.425" / 0.300"
OPB827B None / 0.01"
OPB827C Opaque None / 0.06"
OPB827D None / 0.01"
OPB828A
0.120" / 0.315”
IR Transmissive None
0.425" / 0.220"
OPB828B None / 0.01"
OPB828C Opaque None / 0.06"
OPB828D None / 0.01"
OPB829AZ
0.125” / 0.315”
IR Transmissive None
OPB829BZ None / 0.01"
OPB829CZ Opaque None / 0.06"
OPB829DZ None / 0.01"
24" / 26 AWG Wire
OPB827
OPB828
OPB829Z
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 01/2012
Page 2 of 5
Slotted Optical Switch
OPB827, OPB828, OPB829Z Series
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPB827 and OPB828 Series
1 4
2 3
Color/Pin # Description Color/Pin # Description
Black-2 Cathode White-3 Collector
Red-1 Anode Green-4 Emitter
Lead Spacing
OPB827 = 0.305” OPB828 = 0.220” OPB829 =
24” 26 AWG Wires
OPB829Z Series
DIMENSIONS ARE IN:
INCHES
[ MILLIMETERS]
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 01/2012
Page 3 of 5
Slotted Optical Switch
OPB827, OPB828, OPB829Z Series
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
Electrical Characteristics (TA = 25°C unless otherwise noted)
SYMBOL PARAMETER MIN TYP MAX UNITS TEST CONDITIONS
Input Diode (See OP240 for additional information—for reference only)
VF Forward Voltage - - 1.7 V IF = 20 mA
IR Reverse Current - - 100 µA VR = 2 V
Output Transistor (See OP550 for additional information—for reference only)
V(BR)CEO Collector-Emitter Breakdown Voltage 30 - - V IC = 1 mA
V(BR)ECO Emitter-Collector Breakdown Voltage 5 - - V IE = 100 µA
ICEO Collector-Emitter Dark Current - - 100 nA VCE = 10 V, IF = 0, EE = 0
Coupled
VCE(SAT) Saturation Voltage - - 0.6 V IC = 1800 µA, IF = 20 mA
IC(ON) On-State Collector Current 1800 - - µA VCE = 0.6 V, IF = 20 mA
Absolute Maximum Ratings (TA=25°C unless otherwi se noted)
Storage and Operati ng Temperature
OPB827, OPB828
OPB829Z
-40° C to +85° C
-40° C to +80° C
Lead Soldering Temperature ( 1/16 inch [1.6 mm] from case for 5 seconds with soldering iron) (1) 260° C
Input Diode
Forward DC Current 50 mA
Peak Forward Current (1µs pulse width, 300 pps) 3 A
Reverse DC Voltage 2 V
Power Dissipation (2) 100 mW
Output Phototransistor
Collector-Emitter Voltage 30 V
Emitter-Collector Voltage 5 V
Power Dissipation (2) 100 mW
Collector DC Current 30 mA
Notes:
(1) RMA flux is recommended. Duration can be extended to 10 seconds maximum when flow soldering.
(2) Derate linearly 1.82 mW/° C above 25° C.
(3) Methanol or isopropanol are recommended as cleaning agents. Plastic housing is soluble in chlorinated hydrocarbons and ketones.
(4) All parameters were tested using pulse technique.
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 01/2012
Page 4 of 5
Slotted Optical Switch
OPB827, OPB828, OPB829Z Series
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPB8 2 7 thru OP B8 2 9 (A, C) - 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 0.25
Displace ment Dist ance (inch es)
Typical I
C(ON)
Response (mA)
Right to Left
Left to Rig h t
Top to Bottom
OPB827 thru OPB829 (A, C) - 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 0.25
Displacement Distance (inches)
Typical I
C(ON)
Response (mA)
Righ t to Left
Left to Right
Top to Bottom
OPB827, OPB828, OPB829 Series - Devices A and C
OPB827 thru OPB829 (A, C) - 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 0.25
Displacement Distance (inches)
Typical I
C(ON)
Response (mA)
Right to Left
Left to Righ t
Top to Bottom
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 01/2012
Page 5 of 5
Slotted Optical Switch
OPB827, OPB828, OPB829Z Series
OPTEK reserves the right to make changes at any time in order to improve design and to supply the best product possible.
OPB827 thru OPB829 (B, D) - 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 0.25
Displacement Distance (inches)
Typical I
C (ON)
Response (mA)
Right to Left
Left to Right
Top to Bottom
OPB827 thru OPB829 (B, D) - 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 0.25
Displacement Distance (inches)
Typical I
C (ON)
Response (mA)
Right to Left
Left to Right
Top to Bottom
OPB827, OPB828, OPB829 Series - Devices B and D
OPB 8 27 thru O PB829 (B, D) - Flag Next to Emitte r
0.00
0.20
0.40
0.60
0.80
1.00
1.20
0.00 0.05 0.10 0.15 0.20 0.25
Displacem ent D istanc e (inche s)
Typical I
C (ON)
Response (mA)
Right to Left
Left to R i g h t
Top to Bottom
Emitter
Sensor
Left to Right Right to Left
0Width
Top to Bottom
0
