Phototransistor, top view type
RPT-38PB3F
The RPT-38PB3F is a silicon planar phototransistor. Since it is molded in plastic with a visible light filter, there is almost no effect
from stray light. It is particularly suited for use with a ROHM SIR-34ST3F infrared light emitting diode.
Application Dimensions (Units : mm)
Optical control equipment
Receiver for sensors
Features
1) High sensitivity.
2) Almost no effect from stray light.
Absolute maximum ratings (Ta = 25C)
Parameter Symbol
Collector-emitter voltage
Emitter-collector voltage
Collector current
Collector power dissipation
Operating temperature
Storage temperature
V
CEO
V
ECO
C
I
P
Topr
Tstg
C
Electrical and optical characteristics (Ta = 25C)
Parameter Symbol
Light current
Dark current
Peak sensitivity wavelength
Collector-emitter saturation voltage
Half-angle
Response time
V
I
CE(sat)
θ
I
CEO
λ
1 / 2
tr·t
Min.
C
2.0
−
P
−
−
−
f
−
Limits
32
5
30
150
−25~+85
−30~+85
Typ.
−
−
800
−
±36
10
Max.
−
0.5
−
0.4
−
−
2− 0.5
Unit
V
V
mA
mW
°C
°C
Unit
mA V
CE
VCE=10V(Black box)
μA
nm
C
=1mA, E=500L
I
V
deg
CC
V
μs
φ3.4
φ3.1±0.2
1.1Max.1
4−0.6
2
2.5±1
1
(2.5)
Conditions
=5V, E=500L
=5V, IC=1mA, RL=100Ω
Notes:
1. Unspecified tolerance
+0.1
−0.3
shall be ±0.2 .
2. Dimension in parenthesis are
show for reference.
0.3
±
5.2
Min.24
Internal connection diagram
1
Emitter Collector
X
−
X
−
2
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2010 ROHM Co., Ltd. All rights reserved.
2010.06 - Rev.A
COLLECTOR DISSIPATION : P
RELATIVE LUMINOUS INTENSITY (%)
Data Sheet RPT-38PB3F
Electrical and optical characteristic curves
1000
(nA)
100
CEO
10
1
DARK CURRENT : I
0.1
−25 0 25 50 75
AMBIENT TEMPERATURE : Ta (°C)
VCE=10V
CE
=20V
V
CE
=30V
V
10
Fig.1 Dark current
vs. ambient temperature
10
8
(mA)
C
6
4
LIGHT CURRENT : I
2
0
0 2 4 6 8 101214
COLLECTOR−EMITTER VOLTAGE : V
Fig.4 Output characteristics
E=1000Lux
750Lux
500Lux
250Lux
1
CE (V)
1000
500
(%)
C
200
100
50
20
RELATIVE LIGHT CURRENT : I
10
−25 75 10
AMBIENT TEMPERATURE : Ta
Fig.2 Relative output
vs. ambient temperature
(%)
C
75
50
25
RELATIVE SENSITIVITY : I
0
600400 800 1000 1200 160
OPTICAL WAVELENGTH : λ (nm)
Fig.5 Spectral sensitivity
50250
(°C)
8
VCE=5V
6
(mA)
C
4
2
LIGHT CURRENT : I
0 250 500 750 125
ILLUMINANCE : E (Lx)
1000
Fig.3 Light current vs. irradiance
160
C
120
80
40
0
−25 0 25 50 75 10
AMBIENT TEMPERATURE : Ta (°C)
Fig.6 Collector dissipation vs.
(μs)
r
100
10
RESPONSE TIME : t
1
0.1 110
COLLECTOR CURRENT : I
Fig.7 Response time vs.
collector current
Ta=25°C
VCE=5V
RL=1kΩ
RL=500Ω
RL=100Ω
C
(mA)
20°
30°
40°
50°
60°
70°
80°
0°
100 80 60 40 20
RELATIVE LUMINOUS INTENSITY (%)
10°
10°0°20° 30° 40° 50° 60° 70° 80° 90°
0
ANGULAR DISPLACEMENT (deg)
Fig.8 Directional pattern
100
80
60
40
20
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○
2010 ROHM Co., Ltd. All rights reserved.
2010.06 - Rev.A