Fiber Optic Isolator—Phototransistor Sensor
OPI1280 Series
Features:
Opaque plas c housings
High noise immunity
IR LED with Phototransistor Output
0.100” (2.54 mm) lead spacing
Data Transfer through plas c fiber op c cable
Isola on 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 plas c
housings and coupled by plas c fiber op c cable. The heavy‐duty opaque housing shields the op cal signal from dust,
making this series of devices ideal for dust contaminated environments.
The OPI1280 series are designed for applica ons that require high voltage isola on between input and output or signal
communica on over short distances. Depending on the length of the fiber op c cable, the emi er does not have to be
op cally in‐line with the sensor. The isola on voltage is greater than 10 K volts per inch (Isola on distance between
components) for all versions of the OPI1280.
Custom electrical, wire and cabling and connectors are available. Contact your local representa ve or OPTEK for more
informa on.
Applications:
Ordering Information
Requiring High Voltage isola on
between input and output
Electrical isola on in dirty
environments
Industrial equipment
Medical equipment
3
4
RoHS
1
2
Part
Number
OPI1280‐018
Lead Spacing
±.08” [2]
0.88” [22.4 mm]
Device Length
±.08” [2]
1.22” [31 mm]
OPI1280‐026
1.20” [30.5 mm]
1.53” [38.9 mm]
1.18” [30 mm]
OPI1280‐032
1.42” [36.1 mm]
1.76” [44.7 mm]
1.40” [35.6 mm]
OPI1280‐066
2.78” [70.6 mm]
3.11” [79 mm]
2.76” [70 mm]
PIN #
FUNCTION
1
Anode
2
Cathode
3
Collector
4
Emitter
LED Peak
Wavelength
Lead
Length
890 nm
0.43”
[11 mm]
Tolerances are ± .010” [.25] unless otherwise stated dimensions are in inches [millimeters]
General Note
TT Electronics reserves the right to make changes in product specifica on without
no ce or liability. All informa on is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
© TT electronics plc
Creepage
±.08” [2]
0.86” [22 mm]
TT Electronics | OPTEK Technology
2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200
www. electronics.com | sensors@ electronics.com
Rev H 09/2022 Page 1
Fiber Optic Isolator-Phototransistor Sensor
OPI1280 Series
Electrical Specifications
Absolute Maximum RaƟngs (TA = 25° C unless otherwise noted)
Storage Temperature Range (note 4)
‐40° C to +80° C
Opera ng Temperature Range (note 4)
‐20° C to +75° C
Lead Soldering Temperature [1/16 inch (1.6 mm) from case for 5 seconds with soldering iron]
260° C(1)
Power Dissipa on (2)
100 mW
Electrical Characteristics (TA = 25° C unless otherwise noted)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
TEST CONDITIONS
1.2
‐
2.3
V
IF = 20 mA
‐
‐
50
nA
VCE = 10 V, EE = 0
LED (See OP240 for additional electrical information)
VF
Forward Voltage
SENSOR—Phototransistor (See OP550 for additional information)
ICEO
Collector Dark Current
V(BR)CEO
Collector‐Emitter Breakdown Voltage
33
‐
‐
V
IC = 100 µA, EE = 0
V(BR)ECO
Emitter‐Collector Breakdown Voltage
5.5
‐
‐
V
IE = 100 µA, EE = 0
IC(ON)
Collector ON Current
0.36
‐
‐
mA
VCE = 5 V, IF = 10 mA
IISO(3)
Leakage Current
‐
‐
1.0
µA
I @ 7 KV RMS, 25° C, Test Dura on = 2
sec.
COUPLED
Notes:
1. RMA flux is recommended. Dura on can be extended to 10 seconds maximum when flow soldering. A maximum 20 grams force may be applied to
the leads when soldering.
2. Derate linearly 1.33 mW/° C above 25° C.
3. Isola on voltage tes ng is required.
4. Storage and Opera ng temperature values are based on the plas c op cal interface temperature ra ngs. Please reference UL1577 and UL file
AVLVZ.E89328
General Note
TT Electronics reserves the right to make changes in product specifica on without
no ce or liability. All informa on is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
© TT electronics plc
TT Electronics | OPTEK Technology
2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200
www. electronics.com | sensors@ electronics.com
Rev H 09/2022 Page 2
Fiber Optic Isolator-Phototransistor Sensor
OPI1280 Series
Performance
Output Current vs Forward Current vs Temperature
5.0
Normalized IF = 10mA, Vce = 5V, Ta = 20°C
4.5
Normalized Output Current
4.0
3.5
3.0
2.5
-40°C
-20°C
0°C
20°C
40°C
60°C
80°C
100°C
2.0
1.5
1.0
0.5
0.0
0
5
10
15
20
25
30
35
40
Forward Current ( mA)
General Note
TT Electronics reserves the right to make changes in product specifica on without
no ce or liability. All informa on is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
© TT electronics plc
TT Electronics | OPTEK Technology
2900 E. Plano Pkwy, Plano, TX 75074 | Ph: +1 972 323 2200
www. electronics.com | sensors@ electronics.com
Rev H 09/2022 Page 3
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