Transmissive Photosensors (Photo Interrupters)
CNZ1122, CNZ1128
Photo Interrupters
CNZ1122
Unit : mm
25.0±0.35
13.0±0.3
3.0±0.2
For contactless SW, object detection
Overview
CNZ1122 and CNZ1128 are a photocoupler in which a visible
light emitting diode is used as the light emitting element, and a high
sensitivity phototransistor is used as the light detecting element. The
two elements are arranged so as to face each other, and objects passing
between them are detected.
Mark for
indicating
LED side
Device
center
10.0±0.2
7.0 min.
2.5±0.2
2-0.45±0.2
*9.6±0.3
2-ø3.2±0.2
19.0±0.2
2
3
Highly precise position detection : 1.2 mm
Fast response : t
r
, t
f
= 6
µs
(typ.)
Using small package for saving mounting space (CNZ1128)
Small output current variation against change in temperature
6.2±0.2
Features
*2.54±0.2
1
2
3.0±0.3
4
3
1
Pin connection
(Note) * is dimension at the root of leads
4
Absolute Maximum Ratings
(Ta = 25˚C)
Parameter
Reverse voltage (DC)
Input (Light
Forward current (DC)
emitting diode)
Power dissipation
Collector current
Symbol Ratings
V
R
I
F
P
D*1
I
C
3
25
70
20
30
5
100
Unit
V
mA
mW
V
V
mW
˚C
˚C
6.2±0.2
7.0 min. 10.0±0.2
2.5±0.2
CNZ1128
Mark for indicating
LED side
13.0±0.3
3.0±0.2
3.5±0.2
Device
center
Unit : mm
mA
Collector power dissipation
Temperature
*1
*2
P
C*2
4- 0.45±0.2
*9.4±0.3
Operating ambient temperature
Storage temperature
T
opr
–25 to +85
T
stg
–30 to +100
2
3
Input power derating ratio is 0.93 mW/˚C at Ta
≥
25˚C.
Output power derating ratio is 1.33 mW/˚C at Ta
≥
25˚C.
1
4
,
,,,
,
*2.54±0.2
2
3
1
4
Output (Photo Collector to emitter voltage V
CEO
transistor)
Emitter to collector voltage V
ECO
Pin connection
(Note) * is dimension at the root of leads
3.0±0.3
1
Transmissive Photosensors (Photo Interrupters)
Electrical Characteristics
(Ta = 25˚C)
Parameter
Forward voltage (DC)
Input
characteristics Reverse current (DC)
Collector cutoff current
Output
characteristics Collector to emitter capacitance
Collector current
Symbol
V
F
I
R
I
CEO
C
C
I
C*2
V
R
= 3V
V
CE
= 10V
V
CE
= 10V, f = 1MHz
Conditions
I
F
= 20mA
CNZ1122,CNZ1128
min
typ
2.1
max
2.8
5
200
Unit
V
µA
nA
pF
mA
µs
5
0.3
6
0.5
V
CE
= 10V, I
F
= 15mA
Transfer
Response time
t
r
, t
f*1
V
CC
= 10V, I
C
= 1mA, R
L
= 100Ω
characteristics
Collector to emitter saturation voltage V
CE(sat)
I
F
= 25mA, I
C
= 0.1mA
*1
V
Switching time measurement circuit
Sig.IN
V
CC
(Input pulse)
Sig.OUT (Output pulse)
90%
10%
t
d
t
r
t
f
t
d
: Delay time
t
r
: Rise time (Time required for the collector current to increase
from 10% to 90% of its final value)
t
f
: Fall time (Time required for the collector current to decrease
from 90% to 10% of its initial value)
,,
*2
I
C
classifications
Class
I
C
(mA)
Q
0.3 to 0.75
R
0.55 to 1.30
S
>1.10
,
,
50Ω
R
L
I
F
, I
C
— Ta
40
32
I
F
— V
F
10
2
Ta = 25˚C
I
C
— I
F
V
CE
= 10V
Ta = 25˚C
I
F
, I
C
(mA)
I
C
(mA)
Collector current
30
I
F
I
F
(mA)
24
10
Forward current, collector current
Forward current
20
I
C
16
1
10
8
10
–1
0
– 25
0
20
40
60
80
100
0
0
0.4
0.8
1.2
1.6
2.0
2.4
10
–2
10
–1
1
10
10
2
Ambient temperature Ta (˚C )
Forward voltage V
F
(V)
Forward current I
F
(mA)
2
CNZ1122,CNZ1128
Transmissive Photosensors (Photo Interrupters)
I
C
— V
CE
10
2
I
F
= 20mA
Ta = 25˚C
160
I
C
— Ta
10
V
CE
= 10V
I
F
= 15mA
I
CEO
— Ta
V
CE
= 10V
I
C
(mA)
10
–1
Dark current
0
20
40
60
80
100
1
Relative output current
Collector current
I
CEO
(µA)
10
I
C
(%)
120
1
80
10
–1
40
10
–2
10
–2
10
–1
1
10
10
2
0
– 40 – 20
10
–3
– 40 – 20
0
20
40
60
80 100 120
Collector to emitter voltage V
CE
(V)
Ambient temperature Ta (˚C )
Ambient temperature Ta (˚C )
t
r
— I
C
10
3
V
CC
= 10V
Ta = 25˚C
100
I
C
— d
V
CE
= 10V
Ta = 25˚C
I
F
= 15mA
I
C
(%)
80
Criterion
0
d
60
10
2
t
r
(µs)
500Ω
10
100Ω
Relative output current
10
R
L
= 1kΩ
Rise time
40
1
Sig.IN
V
CC
Sig. V
1
OUT
V
2
V
2
R
L
90%
10%
20
,
10
–1
10
–2
10
–1
V
1
50Ω
t
r
1
t
d
t
f
0
0
1
2
3
4
5
6
Collector current I
C
(mA)
Distance d (mm)
3
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