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Transmissive Photosensors (Photo Interrupters)
CNZ1122, CNZ1128
Photo Interrupters
CNZ1122
Unit : mm
25.00.35 13.00.3 3.00.2
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
10.00.2
7.0 min. 2.50.2
2-0.450.2 *9.60.3
2-o3.20.2
19.00.2 2 3
Highly precise position detection : 1.2 mm Fast response : tr, tf = 6 s (typ.) Using small package for saving mounting space (CNZ1128) Small output current variation against change in temperature
6.20.2
Features
*2.540.2
1 2
3.00.3
4 3
1 4 Pin connection (Note) * is dimension at the root of leads
Absolute Maximum Ratings (Ta = 25C)
Parameter Input (Light Forward current (DC) emitting diode) Power dissipation Collector current Reverse voltage (DC) Symbol Ratings VR IF PD*1 IC 3 25 70 20 30 5 100 Unit V mA mW V V mW C C
6.20.2 7.0 min. 10.00.2 2.50.2
CNZ1128
Mark for indicating LED side 13.00.3 3.00.2 3.50.2 Device center
Unit : mm
mA
Collector power dissipation Temperature
*1 *2
PC*2
4- 0.450.2 *9.40.3
Operating ambient temperature Storage temperature
Topr -25 to +85 Tstg -30 to +100
2
3
Input power derating ratio is 0.93 mW/C at Ta 25C. Output power derating ratio is 1.33 mW/C at Ta 25C.
1
4
, ,, ,,
*2.540.2 2 3
Output (Photo Collector to emitter voltage VCEO transistor) Emitter to collector voltage VECO
1 4 Pin connection (Note) * is dimension at the root of leads
3.00.3
1
Transmissive Photosensors (Photo Interrupters)
Electrical Characteristics (Ta = 25C)
Parameter Forward voltage (DC) Input characteristics Reverse current (DC) Collector cutoff current Output characteristics Collector to emitter capacitance Symbol VF IR ICEO CC
*2
CNZ1122,CNZ1128
Conditions IF = 20mA VR = 3V VCE = 10V VCE = 10V, f = 1MHz
min
typ 2.1
max 2.8 5 200
Unit V A nA pF mA s
5 0.3 6 0.5
Collector current IC VCE = 10V, IF = 15mA Transfer Response time tr , tf*1 VCC = 10V, IC = 1mA, RL = 100 characteristics Collector to emitter saturation voltage VCE(sat) IF = 25mA, IC = 0.1mA
*1
V
Switching time measurement circuit
Sig.IN VCC (Input pulse) Sig.OUT (Output pulse) 90% 10% td tr tf td : Delay time tr : Rise time (Time required for the collector current to increase from 10% to 90% of its final value) tf : Fall time (Time required for the collector current to decrease from 90% to 10% of its initial value)
,,
*2
IC classifications Class IC (mA) Q 0.3 to 0.75 R 0.55 to 1.30 S >1.10
,,
50
RL
IF , IC -- Ta
40 32
IF -- VF
10 2 Ta = 25C
IC -- IF
VCE = 10V Ta = 25C
IF , IC (mA)
IC (mA) Collector current
30 IF
IF (mA)
24
10
Forward current, collector current
Forward current
20
IC
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 VF (V)
Forward current IF (mA)
2
CNZ1122,CNZ1128
Transmissive Photosensors (Photo Interrupters)
IC -- VCE
10 2 IF = 20mA Ta = 25C 160
IC -- Ta
10 VCE = 10V IF = 15mA
ICEO -- Ta
VCE = 10V
IC (mA)
10 -1
Dark current
0 20 40 60 80 100
1
Relative output current
Collector current
ICEO (A)
10
IC (%)
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 VCE (V)
Ambient temperature Ta (C )
Ambient temperature Ta (C )
tr -- IC
10 3 VCC = 10V Ta = 25C 100
IC -- d
VCE = 10V Ta = 25C IF = 15mA
IC (%)
80 Criterion 0 d 60
10 2
tr (s)
500 10 100
Relative output current
10
RL = 1k
Rise time
40
1
Sig.IN
VCC Sig. V1 OUT V2 V2 RL 90% 10%
20
,
10 -1 10 -2 10 -1
V1 50
tr
1
td
tf
0 0 1 2 3 4 5 6
Collector current IC (mA)
Distance d (mm)
3

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