Reflective Photosensors (Photo Reflectors)
CNB1301
Reflective Photosensor
Overview
CNB1301 is a reflective photosensor consisting of a small
thin reflective photosensor (CNB1302) to which a plastic lens is
attached to increase the focal distance from 0.8 mm to 2.5 mm.
Features
Small size, light weight : 5 × 4.5 mm (height : 4.0 mm)
Focal distance : 2.5 mm
Visible light cutoff resin is used
Applications
Copier
Printers
Facsimiles
Cassette deck
(C0.5)
Device
(0.4)
,
4.0±0.2
5.0±0.2
4.5±0.2
(2.8)
3.0 min 4.0±0.2
24
(0.5)
1
(0.5)
(3.5)
(Note)
1. Tolerance unless otherwise specified is ±0.3
2. ( ) Dimension is reference
center
1.05
2-0.15
2-0.5
(1.8) (4.0)
Al Vacum
evaporation
3
1432
Pin connection
Unit : mm
SEC. A-A'
A
A'
t = 4mm
Glass
Absolute Maximum Ratings (Ta = 25˚C)
Parameter
Input (Light
emitting diode)
Reverse voltage (DC)
Forward current (DC)
Power dissipation
Collector current
Output (Photo
transistor)
Collector to emitter voltage
Emitter to collector voltage
Collector power dissipation
Temperature
*1
Input power derating ratio is 1.36 mW/˚C at Ta ≥ 25˚C.
*2
Output power derating ratio is 0.91 mW/˚C at Ta ≥ 25˚C.
Operating ambient temperature
Storage temperature
Symbol
V
R
I
F
*1
P
D
I
C
V
CEO
V
ECO
*2
P
C
T
opr
T
stg
Electrical Characteristics (Ta = 25˚C)
Parameter
Input
characteristics
Output characteristics
Forward voltage (DC)
Reverse current (DC)
Collector cutoff current
Collector current
Transfer
characteristics
Leakage current
Response time
Collector to emitter saturation voltage
Symbol
VFIF = 50mA 1.3 1.5 V
IRVR = 3V 10 µA
I
CEOVCE
*1
I
C
*4
I
D
*2
tr, t
f
V
CE(sat)IF
Ratings Unit
3V
50 mA
75 mW
20 mA
30 V
5V
50 mW
–25 to +75 ˚C
–30 to +80 ˚C
Conditions min typ max Unit
= 10V 200 nA
V
= 5V, IF = 10mA, RL = 100Ω
CC
d = 4mm
V
= 5V, IF = 10mA, RL = 100Ω 40 µA
CC
V
= 5V, IC = 0.1mA,
CC
RL = 100Ω
0.8 5.2 mA
20 µs
= 20mA, IC = 0.1mA 0.5 V
1
CNB1301 Reflective Photosensors (Photo Reflectors)
,
,
2 mm
Soldering bath
*1
Output current measurement circuit
I
F
*2
Switching time measurement circuit
Sig.IN
V
CC
I
C
R
L
V
CC
Evaporated Al
(Input pulse)
50Ω R
*3
Guaranteed conditions of heat withstanding at soldering
L
Sig.OUT
(Output pulse)
t
r
Solder temperature : 260˚C or less
Immersion time : within 5 seconds
Immersion position : At least 2 mm away from the body bottom
4 mm glass plate
90%
10%
t
f
tr : Rise time (Time required for the collector current to increase
from 10% to 90% of its final value)
: Fall time (Time required for the collector current to decrease
t
f
from 90% to 10% of its initial value)
Note) Avoid using dip soldering methods.
*4
Leakage current : When there are no reflective objects
Usage notes
(1) The lens consists of polycarbonate which may be damaged by some chemicals. Therefore care should be
taken to prevent chemicals from touching the lens surface.
(2) This reflective photosensor should not be cleaned with detergents since the lens is an optical component
made with polycarbonate resin.
Dust and debris should be wiped off using an air blower or soft cloth, taking care not to scratch the lens.
(3) Do not apply mechanical stress (e.g., pulling, bending, twisting, spreading) to the lead bases.
2
Reflective Photosensors (Photo Reflectors) CNB1301
P
P
— Ta
,
C
80
(mW)
D
, P
C
60
40
20
Collector power dissipation, power dissipation P
0
– 20
D
P
D
P
C
20 60 100
Ambient temperature Ta (˚C )
I
— I
C
20
16
(mA)
C
12
8
Collector current I
4
F
VCC = 5V
Ta = 25˚C
RL = 100Ω
d = 4mm
60
50
40
(mA)
F
30
20
Forward current I
10
0
0.4 0.8 1.2 1.6 2.42.0
0
Forward voltage VF (V)
16
12
(mA)
C
8
4
Collector current I
I
I
F
C
— V
— V
F
CE
Ta = 25˚C
d = 4mm
Ta = 25˚C
IF = 30mA
20mA
15mA
10mA
4mA
V
— Ta
1.6
1.2
(V)
F
0.8
Forward voltage V
0.4
0
– 40 – 20
F
0 20406080100
Ambient temperature Ta (˚C )
I
— Ta
160
120
(%)
C
80
40
C
Relative output current I
IF = 50mA
10mA
1mA
V
= 5V
CC
= 10mA
I
F
= 100Ω
R
L
0
8 16243240
0
Forward current IF (mA)
I
10
1
(µA)
–1
10
CEO
–2
10
Dark current I
–3
10
–4
10
CEO
0 20406080100– 40 – 20
Ambient temperature Ta (˚C )
— Ta
VCE = 10V
0
24681012
0
Collector to emitter voltage VCE (V)
t
t
— I
,
r
4
10
3
10
(µs)
f
, t
r
2
10
10
Rise time , fall time t
1
–2
10
f
–1
11010
Collector current IC (mA)
C
VCC = 5V
Ta = 25˚C
: t
: t
RL = 2kΩ
1kΩ
200Ω
100
r
f
(%)
C
Relative output current I
0
0 20406080100– 40 – 20
Ambient temperature Ta (˚C )
I
— d
C
80
60
40
20
0
2 46 108
0
Distance d (mm)
= 5V
V
CC
I
= 10mA
F
d
3
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