Fiber Optic Isolator—Phototransistor Sensor
OPI1280 Series
Features:
• Opaque plastic housings
• High noise immunity
• IR LED with Phototransistor Output
• 0.100” (2.54 mm) lead spacing
• Data Transfer through plastic fiber optic cable
• Isolation voltage 15 KV (OPI1280-032), Longer versions higher
Description:
Each OPI1280 consists of a IR LED and a Phototransistor sensor, which are housed in separate opaque molded plastic
housings and coupled by plastic fiber optic cable. The heavy-duty opaque housing shields the optical signal from dust,
making this series of devices ideal for dust contaminated environments.
The OPI1280 series are designed for applications that require high voltage isolation between input and output or signal
communication over short distances. Depending on the length of the fiber optic cable, the emitter does not have to be
optically in-line with the sensor. The isolation voltage is greater than 10 K volts per inch (Isolation distance between
components) for all versions of the OPI1280.
Custom electrical, wire and cabling and connectors are available. Contact your local representative or OPTEK for more
information.
Applications:
• Requiring High Voltage isolation
between input and output
• Electrical isolation in dirty
environments
• Industrial equipment
• Medical equipment
Part
Number
OPI1280-018
OPI1280-026
OPI1280-032
OPI1280-066
Lead Spacing
±.08” [2]
0.88” [22.4 mm]
1.20” [30.5 mm]
1.42” [36.1 mm]
2.78” [70.6 mm]
Ordering Information
Device Length
±.08” [2]
Creepage
±.08” [2]
1.22” [31 mm] 0.86” [22 mm]
1.53” [38.9 mm] 1.18” [30 mm]
1.76” [44.7 mm] 1.40” [35.6 mm]
3.11” [79 mm] 2.76” [70 mm]
LED Peak
Wavelength
890 nm
Lead
Length
0.43”
[11 mm]
31
42
PIN # FUNCTION
1 Anode
2 Cathode
3 Collector
4 Emitter
Tolerances are ± .010” [.25] unless otherwise stated dimensions are in inches [millimeters]
RoHS
General Note
TT Electronics reserves the right to make changes in product specification without
notice or liability. All information is subject to TT Electronics’ own data and is
considered accurate at time of going to print.
© TT electronics plc
Form # 500-1080-001 Rev - 06/2019
TT Electronics | OPTEK Technology
1645 Wallace Drive, Carrollton, TX 75006 | Ph: +1 972 323 2200
www.ttelectronics.com | sensors@ttelectronics.com
Rev G 04/2020 Page 1
