External dimensions (Unit : mm)
RPI-121
Photointerrupter, Ultraminiature type
3.6
Through hole
2.65
Absolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
mA
V
Applications
Forward current
IF
50
Optical control equipment
Cameras
Floppy disk drives
Reverse voltage
VR
5
4-φ0.8
Power dissipation
PD
80
mW
V
Gap
1
Collector-emitter voltage
Emitter-collector voltage
Collector current
VCEO
VECO
IC
30
4.5
0.8
Cross-section A-A
0.4
Features
V
A
30
mA
mW
°C
1) Ultra-small.
2) Minimal influence from stray light.
3) Low collector-emitter saturation voltage.
Collector power dissipation
Operating temperature
Storage temperature
PC
80
Optical axis center
Topr
Tstg
−25 to +85
−40 to +100
°C
Electrical and optical characteristics (Ta=25°C)
2-R0.1
2-R0.3
A
Parameter
Symbol
Min.
Typ.
1.3
−
Max.
Unit
Conditions
4-0.5
−
=
IF 50mA
VF
IR
1.6
V
Forward voltage
Reverse current
Dark current
=
VR 5V
µA
−
−
−
10
−
=
VCE 10V
ICEO
0.5
µA
4-0.2
−
4-0.4
800
Peak sensitivity wavelength
nm
λ
P
−
(2)
−
−
−
−
=
=
(2.65)
IC1
IC2
0.7
0.2
mA
mA
VCE 5V, IF 20mA
Collector current
VCE = 5V, IF = 5m
Collector-emitter saturation
voltage
−
−
−
= =
IF 20mA, IC 0.3mA
VCE(sat)
0.3
V
Anode
Collector
−
=
=
=
Response time
tr tf
10
1
µs
MHz
nm
VCC 5V, IF 20mA, RL 100Ω
fC
Cut-off frequency
−
−
−
−
−
−
Notes:
1. Unspecified tolerance
shall be 0.2 .
IF=50mA
∗ Non-coherent Infrared light emitting diode used.
λP
Peak light emitting wavelength
950
VCC=5V, IC=1mA, RL=100Ω
µs
Response time
tr tf
10
2. Dimension in parenthesis are
show for reference.
∗ This product is not designed to be protected against electromagnetic wave.
Cathode
Emitter
λP
nm
−
Maximum sensitivity wavelength
−
800
−
Electrical and optical characteristics curves
5
4
3
2
1
0
100
125
1000
50
40
30
20
−25˚C
0˚C
25˚C
50˚C
75˚C
50
100
100
d
VCE=30V
VCE=20V
VCE=10V
40
RL=1kΩ
75
10
1
RL=500Ω
10
30
50
20
RL=100Ω
25
10
0
10
0.1
1
0.05 0.1
0
0
0
0.5
1.0
1.5
2.0
2.5
0
10
20
30
40
50
1
10
−25
0
25
50
75
100
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
−20
0
20
40
60
80
100
DISTANCE : d (mm)
FORWARD CURRENT : IF (mA)
COLLECTOR CURRENT : IC (mA)
AMBIENT TEMPERATURE : Ta (˚C)
FORWARD VOLTAGE : VF (V)
AMBIENT TEMPERATURE : Ta (˚C)
Fig.1 Relative output current vs.
distance ( )
Fig.3 Forward current vs. forward
voltage
Fig.7 Collector current vs.
forward current
Fig.8 Response time vs.
collector current
Fig.9 Dark current vs.
ambient temperature
Fig.2 Forward current falloff
160
125
Input
VCC
120
100
80
60
40
20
0
10
8
140
120
100
80
100
75
50
25
0
IF=50mA
40mA
PD PC
Input
Output
RL
6
30mA
90%
10%
Output
20mA
10mA
60
4
2
td
40
tr
tf
td : Delay time
20
Rise time (time for output current to rise from
10% to 90% of peak current)
tr :
0
0
−20
0
20
40
60
80
100
0
0.5
1.0
1.5
2.0
2.5
−40 −20
0
20 40 60 80 100
0
2
4
6
8
10
tf :
Fall time (time for output current to fall from 90%
to 10% of peak current)
AMBIENT TEMPERATURE : Ta (˚C)
DISTANCE : d (mm)
AMBIENT TEMPERATURE : Ta (˚C)
COLLECTOR TO EMITTER VOLTAGE: VCE (V)
Fig.4 Relative output current vs.
distance (
Fig.5 Power dissipation / collector power
dissipation vs. ambient temperature
Fig.6 Relative output vs. ambient
temperature
Fig.10 Output characteristics
Fig.11 Response time measurement circuit
)