Optoisolators (Photocouplers)
CNZ3731, CNC7C501, CNZ3734
CNC2S501, CNC7C502, CNC7H501
Optoisolators
Overview
The CNZ3731 series of optoisolators consist of a GaAs infrared
LED which is optically coupled with a Si NPN Darlington
phototransistor, and housed in a small DIL package. The series
provides high I/O isolation voltage and high collector/emitter isolation
voltage, as well as a high current transfer ratio (CTR). This opto
isolator series also includes the two-channel CNC7C501 and the four-
channel CNZ3734, and A type of these models with increased
collector to emitter breakdown voltage (V
CEO
> 350V).
CNZ3731/CNC2S501
LED Mark
4.58鹵0.3
1
2
7.62鹵0.3
6.2鹵0.5
3.85鹵0.3
2.0
5.2 max.
0.5 min.
4
3
4-0.5鹵0.1
4-1.2鹵0.15
2.54鹵0.25
5藲
to 1
Unit : mm
2.54 min.
0.25
鈥?
+0.15
0
5藲
to 1
0
1: Anode
2: Cathode
3: Emitter
4: Collector
CNC7C501/CNC7C502
LED Mark
1
2
3
4
7.62鹵0.3
6.2鹵0.5
3.85鹵0.3
2.0
9.66鹵0.3
5.2 max.
0.5 min.
8
7
6
5
0.25
鈥?
+0.15
Unit : mm
2.54 min.
Features
High collector to emitter breakdown voltage : V
CEO
> 300 V,
A type : V
CEO
> 350 V
High current transfer ratio with Darlington phototransistor output :
CTR = 4000% (typ.)
High I/O isolation voltage : V
ISO
鈮?/div>
5000 V
rms
Small DIL package for saving mounting space
UL listed (UL File No. E79920)
A-type models have a guaranteed internal insulating distance of 0.4 mm
0 to
15藲
0 to
15藲
1,3: Anodee
2,4: Cathode
5,7: Emitter
6,8: Collector
CNZ3734/CNC7H501
LED Mark
1
2
3
4
5
6
7
8
7.62鹵0.3
6.2鹵0.5
3.85鹵0.3
2.0
5.2 max.
0.5 min.
16
15
14
13
12
11
10
9
0.25
鈥?
+0.15
Applications
Telephone exchange
FAX
Programmable controllers
Signal transfer between circuits with different potentials and impedances
19.82鹵0.5
Pin Connection
CNZ3731
CNC2S501
1
4
CNZ3734
CNC7H501
1
16
0 to
15藲
1 , 3 , 5 , 7 : Anode
2 , 4 , 6 , 8 : Cathode
15藲
9,11,13,15: Emitter
0 to
10,12,14,16: Collector
2
3
Top View
2
3
15
14
CNC7C501
CNC7C502
1
8
4
5
13
12
2
3
7
6
6
7
11
10
4
5
Top View
8
9
Top View
16-0.5鹵0.1
16-1.2鹵0.15
2.54鹵0.25
Telephones
8-0.5鹵0.1
8-1.2鹵0.15
2.54鹵0.25
Unit : mm
2.54 min.
1
1
2
3
4
