
Document Number: 83640
Rev. 1.6, 09-Jan-08
For technical questions, contact: optocoupler.answers@vishay.com
www.vishay.com
1
Optocoupler, Phototransistor Output
(Single, Dual, Quad Channel)
IL74/ILD74/ILQ74
Vishay Semiconductors
DESCRIPTION
The IL74/ILD74/ILQ74 is an optically coupled pair with a
GaAIAs infrared LED and a silicon NPN phototransistor.
Signal information, including a DC level, can be transmitted
by the device while maintaining a high degree of electrical
isolation between input and output.The IL74/ILD74/ILQ74 is
especially for driving medium-speed logic, where it may be
used to eliminate troublesome ground loop and noise
problems. Also it can be used to replace relays and
transformers in many digital interface applications, as well as
analog applications such as CTR modulation.
The ILD74 has two isolated channels in a single DIP
package; the ILQ74 has four isolated channels per package.
FEATURES
IL74/ILD74/ILQ74 TTL compatible
Transfer ratio, 35 % typical
Coupling capacitance, 0.5 pF
Single, dual, and quad channel
Industry standard DIP packages
Lead (Pb)-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
CSA 93751
BSI IEC 60950; IEC 60065
DIN EN 60747-5-2 (VDE 0884)/DIN EN 60747-5-5 pending
available with option 1, X001 suffix
FIMKO
Note
For additional information on the available options refer to option information.
i179015
1
2
3
6
5
4
B
C
E
A
C
NC
1
2
3
4
8
7
6
5
E
C
C
E
A
C
C
A
A
C
C
A
A
C
C
A
E
C
C
E
E
C
C
E
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
Single Channel
Dual Channel
Quad Channel
ORDER INFORMATION
PART
REMARKS
IL74
ILD74
ILQ74
IL74-X006
ILD74-X006
ILD74-X007
ILD74-X009
ILQ74-X009
CTR
DC
> 12.5 %, single channel DIP-6
CTR
DC
> 12.5 %, dual channel DIP-8
CTR
DC
> 12.5 %, quad channel DIP-16
CTR
DC
> 12.5 %, single channel DIP-6 400 mil (option 6)
CTR
DC
> 12.5 %, dual channel DIP-8 400 mil (option 6)
CTR
DC
> 12.5 %, dual channel SMD-8 (option 7)
CTR
DC
> 12.5 %, dual channel SMD-8 (option 9)
CTR
DC
> 12.5 %, dual channel SMD-16 (option 9)