Sensing and Control
Optically Coupled Isolator
OPI120, OPI123
Features:
15 kV electrical isola on
Choice of phototransistor or photodarington output
Herme cally sealed LED and photosensor
Base contact for conven onal transistor biasing (OP120 only)
UL recognized File No. E58730*
Wide opera ng temperature range
Descrip on:
Each Optoisolator in this data sheet contains an infrared Light Emi ng Diode (LED) and a NPN silicon
Photosensor. The OPI120 has an 890 nm Light Emi ng Diode (LED) and NPN phototransistor sensor, whereas
the OP123 has a 890 nm LED and a photodarlington sensor. The devices are sealed in a precast opaque housing
with a op cally transmissive path between the LED and the photosensor.
The Optoisolators in this data sheet are UL approved under E 58730.
This series is designed for transmission of informa on between one power supply voltage to another where the
poten als during surge condi ons are not greater than the guaranteed isola on voltage.
Custom electrical, wire and cabling and connectors are available. Contact your local representa ve or OPTEK for
more informa on.
TX and TXV processing is available. For more informa on, contact your local representa ve or OPTEK.
Applica ons:
High voltage isola on between input and output
Electrical isola on in dirty environments
Industrial equipment
Medical equipment
Office equipment
Ordering Informa on
Part
Number
LED Peak
Wavelength
Sensor
OPI120
890 nm
or
935 nm
Transistor
OPI123
Darlington
Isola on
Voltage
(,000)
CTR
Min
20
15
50
10 / 50
VCE
(Volts)
Max
Lead
Length /
Spacing
25
IF (mA)
Typ / Max
0.40" /
0.75"
20
RoHS
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
1645 Wallace Drive, Carrollton, TX 75006|Ph: +1 972 323 2200
www.optekinc.com | www. electronics.com
Issue B.A 03/2015 Page 1
