Phototransistor, top view type
Datasheet
RPT-37PB3F
The RPT-37PB3F 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. It is possible to distinguish the polarity by the shape of ramp type.
Applications
Outline
• Optical control equipment
• Receiver for sensors
Features
1) High sensitivity.
2) Almost no effect from stray light.
Dimensions (Unit : mm)
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Value
Unit
Collector-emitter voltage
VCEO
32
V
Emitter-collector voltage
VECO
5
V
Collector current
IC
30
mA
Collector power dissipation
PC
150
mW
Operating temperature
Topr
25 to 85
°C
Storage temperature
Tstg
30 to 85
°C
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2018.06 - Rev.C
Datasheet
RPT-37PB3F
Electrical and optical characteristics (Ta = 25°C)
Values
Parameter
Symbol
Light current
IC
Dark current
ICEO
Conditions
VCE =5V, E=500Lx
VCE=10V (Black box)
p
Peak sensitivity wavelength
-
VCE(sat) IC =1mA, E=500Lx
Collector-emitter saturationvoltage
Half-angle
1/2
Response time
tr·tf
VCC =5V, IC=1mA,
RL=100
Light current : I C
Unit
L
2.0
to
5.0
mA
M
3.0
to
8.0
mA
N
5.5
to
13.0
mA
-
Unit
Min.
Typ.
Max.
2.0
-
-
mA
-
-
0.5
A
-
800
-
nm
-
-
0.4
V
-
36
-
deg
-
10
-
s
Classified table of rank
Item
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© 2015 ROHM Co., Ltd. All rights reserved.
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2018.06 - Rev.C
Datasheet
RPT-37PB3F
Electrical and optical characteristics curves
Fig.2 Relative Output vs. Ambient Temperature
Dark Current : ICEO [nA]
Relative Light Current : IC [%]
Fig.1 Dark Current vs. Ambient Temperature
Ambient Temperature : Ta [°C]
Fig.4 Output Characteristics
Light Current : IC [mA]
Light Current : IC [mA]
Fig.3 Light Current vs. Emitter Strength
Ambient Temperature : Ta [°C]
Collector to Emitter Voltage : VCE [V]
Illuminance : E [Lx]
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© 2015 ROHM Co., Ltd. All rights reserved.
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2018.06 - Rev.C
Datasheet
RPT-37PB3F
Electrical and optical characteristics curves
Fig.5 Spectral Sensitivity
Relative Sensitivity : IC [%]
Collector Dissipation : PC [mW]
Fig.6 Collector Power Dissipation
vs. Ambient Temperature
Optical Wavelength : [nm]
Ambient Temperature : Ta [°C]
Response Time : tr [s]
Fig.7 Response time vs.Collector Current
Collector Current : IC [mA]
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© 2015 ROHM Co., Ltd. All rights reserved.
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2018.06 - Rev.C
Datasheet
RPT-37PB3F
Electrical and optical characteristics curves
Relative Luminous Intensity : [%]
Fig.8 Directional Pattern
Angular Displacement : [deg]
Relative Luminous Intensity : [%]
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Notice
Notes
1) The information contained herein is subject to change without notice.
2) Before you use our Products, please contact our sales representative and verify the latest specifications.
3) Although ROHM is continuously working to improve product reliability and quality, semiconductors can break down and malfunction due to various factors.
Therefore, in order to prevent personal injury or fire arising from failure, please take safety
measures such as complying with the derating characteristics, implementing redundant and
fire prevention designs, and utilizing backups and fail-safe procedures. ROHM shall have no
responsibility for any damages arising out of the use of our Poducts beyond the rating specified by
ROHM.
4) Examples of application circuits, circuit constants and any other information contained herein are
provided only to illustrate the standard usage and operations of the Products. The peripheral
conditions must be taken into account when designing circuits for mass production.
5) The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly,
any license to use or exercise intellectual property or other rights held by ROHM or any other
parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of
such technical information.
6) The Products are intended for use in general electronic equipment (i.e. AV/OA devices, communication, consumer systems, gaming/entertainment sets) as well as the applications indicated in
this document.
7) The Products specified in this document are not designed to be radiation tolerant.
8) For use of our Products in applications requiring a high degree of reliability (as exemplified
below), please contact and consult with a ROHM representative : transportation equipment (i.e.
cars, ships, trains), primary communication equipment, traffic lights, fire/crime prevention, safety
equipment, medical systems, servers, solar cells, and power transmission systems.
9) Do not use our Products in applications requiring extremely high reliability, such as aerospace
equipment, nuclear power control systems, and submarine repeaters.
10) ROHM shall have no responsibility for any damages or injury arising from non-compliance with
the recommended usage conditions and specifications contained herein.
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shall have no responsibility for any damages arising from any inaccuracy or misprint of such
information.
12) Please use the Products in accordance with any applicable environmental laws and regulations,
such as the RoHS Directive. For more details, including RoHS compatibility, please contact a
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non-compliance with any applicable laws or regulations.
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R1107 A
