Photointerrupter
RPI-441C1
Applications
• Optical control equipment
• Amusement
Features
1) Compact with a 4mm gap.
2) High precision position detection (slit width of 0.5mm).
3) Minimal influence from stray light.
4) Low collector-emitter saturation voltage.
Dimensions
(Unit : mm)
• Printers
Outline
Datasheet
Absolute
maximum ratings
(T
a
= 25°C)
Parameter
Forward current
Input (LED)
Reverse voltage
Power dissipation
Collector-emitter voltage
Output
(photo-
transistor)
Emitter-collector voltage
Collector current
Collector power dissipation
Operating temperature
Storage temperature
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© 2015 ROHM Co., Ltd. All rights reserved.
Symbol
I
F
V
R
P
D
V
CEO
V
ECO
I
C
P
C
T
opr
T
stg
Value
50
5
80
30
4.5
30
80
25
to
85
30
to
85
Unit
mA
V
mW
V
V
mA
mW
°C
°C
1/5
2017.03 - Rev.C
RPI-441C1
Electrical
and optical characteristics
(T
a
= 25°C)
Values
Parameter
Symbol
Conditions
Min.
Forward voltage
Input
characteristics
Reverse current
I
R
V
R
=5V
-
-
10
V
F
I
F
=50mA
-
Typ.
1.3
Datasheet
Unit
Max.
1.6
V
A
Dark current
Output
characteristics
I
CEO
V
CE
=10V
-
-
0.5
A
Peak sensitivity
wavelength
p
-
-
800
-
nm
Collector current
Collector-emitter
saturation
voltage
Response time
I
C
V
CE
=5V, I
F
=20mA
0.2
0.55
-
mA
Transfer
characteristics
V
CE(sat)
I
F
=20mA, I
C
=0.1mA
V
CC
=5V, I
F
=20mA,
R
L
=100
-
-
0.4
V
tr·tf
-
10
-
s
Cut-off frequency
Infrared light
emitter diode
f
C
I
F
=50mA
* Non-coherent Infrared
light emitting diode used.
-
1
-
MHz
Peak light emitting
wavelength
p
-
950
-
nm
V
CC
=5V, I
C
=1mA, R
L
=100
Response time
Photo
transistor
tr·tf
*This product is not designed to be
protected against electromagnetic
wave.
-
10
-
s
Maximum sensitivity
wavelength
p
-
-
800
-
nm
www.rohm.com
© 2015 ROHM Co., Ltd. All rights reserved.
2/5
2017.03 - Rev.C
RPI-441C1
Electrical
and optical characteristics curves
Datasheet
Fig.1 Relative Output Current vs.Distance (I)
Fig.2 Relative Output Current vs.Distance (II)
Relative Collector Current : I
C
[%]
Relative Collector Current : I
C
[%]
Distance : d [mm]
Distance : d [mm]
Fig.3 Forward Current Falloff
Fig.4 Power Dissipation / Collector Power Dissipation
vs. Ambient Temperature
Power Dissipation /
Collector Power Dissipation : P
D
/P
C
[mW]
Forward Current : I
F
[mA]
Ambient Temperature : T
a
[°C]
Ambient Temperature : T
a
[°C]
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© 2015 ROHM Co., Ltd. All rights reserved.
3/5
2017.03 - Rev.C
RPI-441C1
Electrical
and optical characteristics curves
Datasheet
Fig.5 Forward Current vs. Forward Voltage
Fig.6 Collector Current vs. Forward Current
Collector Current : I
C
[mA]
Forward Current : I
F
[mA]
Forward Voltage : V
F
[V]
Forward Current : I
F
[mA]
Fig.7 Relative Output vs. Ambient Temperature
Fig.8 Response Time vs. Collector Current
Relative Collector Current : I
C
[%]
Response Time : t [s]
Ambient Temperature : T
a
[°C]
Collector Current : I
C
[mA]
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© 2015 ROHM Co., Ltd. All rights reserved.
4/5
2017.03 - Rev.C
RPI-441C1
Electrical
and optical characteristics curves
Datasheet
Fig.9 Dark Current vs. Ambient Temperature
Fig.10 Output Characteristics
Collector Current : I
C
[mA]
Dark Current : I
CEO
[nA]
Ambient Temperature : T
a
[°C]
Collector to Emitter Voltage : V
CE
[V]
Fig.11 Response Time Measurement Circuit
t
d
: Delay time
t
r
: Rise time (time for output current to
rise from 10% to 90% of peak current)
t
f
: Fall time (time for output current to fall
from 90% to 10% of peak current)
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© 2015 ROHM Co., Ltd. All rights reserved.
5/5
2017.03 - Rev.C
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