
IL255
Document Number 83619
Rev. 1.6, 26-Oct-04
Vishay Semiconductors
www.vishay.com
1
i179010
1
2
3
6
5
4
B
C
E
A/C
C/A
NC
Pb
Pb-free
e3
Optocoupler, Phototransistor Output, AC Input, With Base
Connection
Features
AC or Polarity Insensitive Inputs
Continuous Forward Current, 130 mA
Built-in Reverse Polarity Input Protection
Improved CTR Symmetry
Industry Standard DIP Package
Lead-free component
Component in accordance to RoHS 2002/95/EC
and WEEE 2002/96/EC
Agency Approvals
UL1577, File No. E52744 System Code H or J,
Double Protection
DIN EN 60747-5-2 (VDE0884)
DIN EN 60747-5-5 pending
Available with Option 1
BSI IEC60950 IEC60065
Applications
Telecommunications
Ring Detection
Loop Current Detector
Description
The IL255 is a bidirectional input optically coupled
isolator consisting of two high current GaAs infrared
LEDs coupled to a silicon NPN phototransistor. The
IL255 has a minimum CTR of 20 %
This optocoupler is ideal for applications requiring AC
signal detection and monitoring.
Order Information
For additional information on the available options refer to
Option Information.
Absolute Maximum Ratings
Tamb = 25 °C, unless otherwise specified
Stresses in excess of the absolute Maximum Ratings can cause permanent damage to the device. Functional operation of the device is
not implied at these or any other conditions in excess of those given in the operational sections of this document. Exposure to absolute
Maximum Rating for extended periods of the time can adversely affect reliability.
Input
Part
Remarks
IL255
CTR > 20 %, DIP-6
IL255-1
CTR 20 - 80 %, DIP-6
IL255-2
CTR > 50 %, DIP-6
IL255-X007
CTR > 20 %, SMD-6 (option 7)
IL255-X009
CTR > 20 %, SMD-6 (option 9)
Parameter
Test condition
Symbol
Value
Unit
Peak pulsed current
1.0
s, 300 pps
IFP
3.0
A
Forward continuous current
IF
130
mA
Power dissipation
Pdiss
175
mW
Derate linearly from 25 °C
2.3
mW/°C