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Publication date: August 2004 SJC00313AED
2SD1938(F)
Silicon NPN epitaxial planar type
For low-voltage output amplification
For muting
For DC-DC converter
■ Features
• Low ON resistance R
on
• High forward current transfer ratio h
FE
• Mini type package, allowing downsizing of the equipment and
automatic insertion through the tape packing
■ Absolute Maximum Ratings T
a
= 25°C
Parameter Symbol Rating Unit
Collector-base voltage (Emitter open) V
CBO
50 V
Collector-emitter voltage (Base open) V
CEO
20 V
Emitter-base voltage (Collector open) V
EBO
25 V
Collector current I
C
300 mA
Peak collector current I
CP
500 mA
Collector power dissipation P
C
200 mW
Junction temperature T
j
150 °C
Storage temperature T
stg
−55 to +150 °C
Parameter Symbol Conditions Min Typ Max Unit
Collector-emitter voltage (Base open) V
CEO
I
C
= 1 mA, I
B
= 020V
Base-emitter voltage V
BE
V
CE
= 2 V, I
C
= 4 mA 0.6 V
Collector-base cutoff current (Emitter open)
I
CBO
V
CB
= 50 V, I
E
= 0 0.1 µA
Emitter-base cutoff current (Collector open)
I
EBO
V
EB
= 25 V, I
C
= 0 0.1 µA
Forward current transfer ratio
*
1
h
FE
V
CE
= 2 V, I
C
= 4 mA 500 2
500
Collector-emitter saturation voltage V
CE(sat)
I
C
= 30 mA, I
B
= 3 mA 0.1 V
Transition frequency f
T
V
CB
= 6 V, I
E
= −4 mA, f = 200 MHz 80 MHz
Collector output capacitance C
ob
V
CB
= 10 V, I
E
= 0, f = 1 MHz 7 pF
(Common base, input open circuited)
ON resistance
*
2
R
on
1.0 Ω
■ Electrical Characteristics T
a
= 25°C ± 3°C
Unit: mm
Note) 1. Measuring methods are based on JAPANESE INDUSTRIAL STANDARD JIS C 7030 measuring methods for transistors.
2.
*
1: Rank classification
*
2: R
on
Measuremet circuit
Rank S T No rank
h
FE
500 to 1
500 800 to 2
500 500 to 2
500
V
V
1 kΩ
R
on
=
V
B
× 1
000 (Ω)
V
A
− V
B
f = 1 kHz
V = 0.3 V
V
B
I
B
= 1 mA
V
A
1: Base
2: Emitter
3: Collector
EIAJ: SC-59
JEDEC: SOT-346
Mini3-G1 Package
Marking symbol: 3W
0.40
+0.10
–0.05
(0.65)
1.50
+0.25
–0.05
2.8
+0.2
–0.3
2
1
3
(0.95) (0.95)
1.9
±0.1
2.90
+0.20
–0.05
0.16
+0.10
–0.06
0.4±0.2
5˚
10˚
0 to 0.1
1.1
+0.2
–0.1
1.1
+0.3
–0.1
Product of no-rank classification is not marked.
This product complies with the RoHS Directive (EU 2002/95/EC).