This product complies with the RoHS Directive (EU 2002/95/EC).
Transistors
2SD1938(F)
Silicon NPN epitaxial planar type
For low-voltage output amplification
For muting
For DC-DC converter
Unit: mm
0.40+0.10
–0.05
1.9±0.1
Collector-base voltage (Emitter open)
VCBO
50
V
Collector-emitter voltage (Base open)
VCEO
20
V
Emitter-base voltage (Collector open)
VEBO
Collector power dissipation
PC
Junction temperature
Tj
Storage temperature
Tstg
25
V
300
mA
500
mA
200
mW
150
°C
−55 to +150
°C
1.1+0.3
–0.1
Unit
1.1+0.2
–0.1
Rating
0.4±0.2
1: Base
2: Emitter
3: Collector
EIAJ: SC-59
JEDEC: SOT-346
Mini3-G1 Package
0 to 0.1
Symbol
ICP
5˚
2.90+0.20
–0.05
10˚
Parameter
Peak collector current
2.8+0.2
–0.3
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(0.95) (0.95)
■ Absolute Maximum Ratings Ta = 25°C
IC
2
1
(0.65)
• Low ON resistance Ron
• High forward current transfer ratio hFE
• Mini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing
1.50+0.25
–0.05
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■ Features
Collector current
0.16+0.10
–0.06
Marking symbol: 3W
■ Electrical Characteristics Ta = 25°C ± 3°C
Symbol
VCEO
IC = 1 mA, IB = 0
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Parameter
Collector-emitter voltage (Base open)
Conditions
VBE
VCE = 2 V, IC = 4 mA
Collector-base cutoff current (Emitter open)
ICBO
VCB = 50 V, IE = 0
Emitter-base cutoff current (Collector open)
IEBO
VEB = 25 V, IC = 0
Forward current transfer ratio *1
hFE
VCE = 2 V, IC = 4 mA
VCE(sat)
IC = 30 mA, IB = 3 mA
en
an
Base-emitter voltage
int
Collector-emitter saturation voltage
Collector output capacitance
(Common base, input open circuited)
Cob
ON resistance *2
Ron
Typ
Max
20
Unit
V
0.6
V
500
0.1
µA
0.1
µA
2 500
0.1
VCB = 6 V, IE = −4 mA, f = 200 MHz
fT
Ma
Transition frequency
Min
80
V
MHz
VCB = 10 V, IE = 0, f = 1 MHz
7
pF
Ω
1.0
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.
2. *1: Rank classification
*2: Ron Measuremet circuit
Rank
S
T
No rank
hFE
500 to 1 500
800 to 2 500
500 to 2 500
1 kΩ
IB = 1 mA
f = 1 kHz
V = 0.3 V
Product of no-rank classification is not marked.
VB
Ron =
Publication date: August 2004
SJC00313AED
VV
VA
VB
× 1 000 (Ω)
VA − VB
1
This product complies with the RoHS Directive (EU 2002/95/EC).
2SD1938(F)
PC Ta
IC VCE
IC VBE
18
250
100
VCE = 2 V
90
150
IB = 10 µA
14
80
Collector current IC (mA)
Collector current IC (mA)
200
12
8 µA
10
8
6 µA
70
Ta = 85°C
60
100
25°C
40
60
80 100 120 140 160
2 µA
10
0
2
4
6
8
10
Forward current transfer ratio hFE
1 400
Ta = 85°C
1 200
Ta = 85°C
25°C
1 000
−25°C
0.01
25°C
800
−25°C
600
400
200
100
ce
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0.1
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0.001
Collector current IC (mA)
0.2
0.4
0.6
0.8
1
10
100
Collector current IC (mA)
SJC00313AED
1 000
1.0
1.2
1.4
Base-emitter voltage VBE (V)
Cob VCB
100
VCE = 2 V
10
0
hFE IC
1 600
IC / IB = 10
1
0
12
Collector-emitter voltage VCE (V)
VCE(sat) IC
0.1
0
Collector output capacitance
C (pF)
(Common base, input open circuited) ob
20
30
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0
40
20
2
Ambient temperature Ta (°C)
2
4 µA
4
50
0
Collector-emitter saturation voltage VCE(sat) (V)
6
−25°C
50
M
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Collector power dissipation PC (mW)
Ta = 25°C
16
f = 1 MHz
Ta = 25°C
10
1
0
5
10
15
20
25
30
35
Collector-base voltage VCB (V)
40
Request for your special attention and precautions in using the technical information and
semiconductors described in this book
(1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and
regulations of the exporting country, especially, those with regard to security export control, must be observed.
(2) The technical information described in this book is intended only to show the main characteristics and application circuit examples
of the products, and no license is granted under any intellectual property right or other right owned by our company or any other
company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any other
company which may arise as a result of the use of technical information described in this book.
M
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(3) The products described in this book are intended to be used for standard applications or general electronic equipment (such as office
equipment, communications equipment, measuring instruments and household appliances).
Consult our sales staff in advance for information on the following applications:
– Special applications (such as for airplanes, aerospace, automobiles, traffic control equipment, combustion equipment, life support
systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body.
– Any applications other than the standard applications intended.
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(4) The products and product specifications described in this book are subject to change without notice for modification and/or improvement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product
Standards in advance to make sure that the latest specifications satisfy your requirements.
(5) When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions
(operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute
maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any
defect which may arise later in your equipment.
Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure
mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire
or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products.
(6) Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS,
thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which
damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages.
Pl
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(7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of Matsushita
Electric Industrial Co., Ltd.
