
IL55B/ 56B/ MOC8021
Document Number 83637
Rev. 1.5, 26-Oct-04
Vishay Semiconductors
www.vishay.com
1
i179013
NC
C
E
A
C
NC
1
2
3
6
5
4
Pb
Pb-free
e3
Optocoupler, Photodarlington Output, High Gain
Features
High collector-emitter breakdown voltage, 80 V
minimum
High isolation resistance, 1011
typical
Standard plastic DIP Package
No base terminal connection for improved com-
mon mode interface immunity
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
Description
The IL5xB and MOC8021 are optically coupled isola-
tors with a gallium arsenide infrared LED and a silicon
photodarlington sensor. Switching can be achieved
while maintaining a high degree of isolation between
driving and load circuits. These optocouplers can be
used to replace reed and mercury relays with advan-
tages of long life, high speed switching and elimina-
tion of magnetic fields.
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
IL55B
CTR > 500 %, DIP-6
IL56B
CTR > 1000 %, DIP-6
MOC8021
CTR > 1000 %, DIP-6
IL55B-X006
CTR > 500 %, SMD-6 (option 7)
IL55B-X009
CTR > 500 %, SMD-6 (option 9)
IL55B-X007
CTR > 500 %, SMD-6 (option 7)
Parameter
Test condition
Symbol
Value
Unit
Peak reverse voltage
VR
3.0
V
Forward continuous current
IF
60
mA
Power dissipation
Pdiss
100
mW
Derate linearly from 55 °C
1.33
mW/°C