Optoisolators (Photocouplers)
CNZ3731, CNC7C501, CNZ3734, CNC2S501, CNC7C502, CNC7H501
(ON3731, ON3732, ON3734, ON3731A, ON3732A, ON3734A)
Optoisolators
Unit : mm
CNZ3731/CNC2S501
5.2 max.
Overview
LED Mark
0.5 min.
2.54 min.
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 (VCEO > 350V).
1
2
4
3
7.62±0.3
6.2±0.5
1: Anode
2: Cathode
3: Emitter
4: Collector
Unit : mm
2.54 min.
CNC7C501/CNC7C502
5.2 max.
Features
LED Mark
0.5 min.
High collector to emitter breakdown voltage : VCEO > 300 V,
1
2
3
4
8
7
6
5
A type : VCEO > 350 V
High current transfer ratio with Darlington phototransistor output
CTR = 4000% (typ.)
High I/O isolation voltage : VISO ≥ 5000 Vrms
:
7.62±0.3
6.2±0.5
1,3: Anodee
Small DIL package for saving mounting space
UL listed (UL File No. E79920)
2,4: Cathode
5,7: Emitter
6,8: Collector
A-type models have a guaranteed internal insulating distance of 0.4 mm
Unit : mm
CNZ3734/CNC7H501
5.2 max.
LED Mark
Applications
0.5 min.
2.54 min.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Telephones
Telephone exchange
FAX
Programmable controllers
Signal transfer between circuits with different potentials and impedances
7.62±0.3
6.2±0.5
Pin Connection
1 , 3 , 5 , 7 : Anode
2 , 4 , 6 , 8 : Cathode
9,11,13,15: Emitter
10,12,14,16: Collector
CNZ3731
CNC2S501
CNZ3734
CNC7H501
1
4
1
16
2
3
2
3
15
14
Top View
CNC7C501
CNC7C502
1
4
5
13
12
8
6
7
11
10
2
3
7
6
8
9
4
5
Top View
Top View
Note) The part numbers in the parenthesis show conventional part number.
1