2SA2048K
Transistor
Medium power transistor (
−
30V,
−1.0
A)
2SA2048K
!
Features
1) High speed switching. (Tf : Typ. : 20ns at I
C
=
−
1.0A)
2) Low saturation voltage, typically
(Typ. :
−150mV
at I
C
=
−
500mA, I
B
=
−
50mA)
3) Strong discharge power for inductive load and
capacitance load.
4) Complements the 2SC5730K
!
External dimensions
(Units : mm)
0.95 0.95
1.9
0.8
1.1
SMT3
0.4
(3)
(1)
1.6
2.8
0.15
(1) Emitter
(2) Base
(3) Collector
0.3Min.
!Applications
Small signal low frequency amplifier
High speed switching
Abbreviated symbol : UL
!
Structure
PNP Silicon epitaxial planar transistor
!
Packaging
specifications
Package
Type
Code
Basic ordering unit (pieces)
2SA2048K
Taping
T146
3000
!
Absolute maximum ratings
(Ta=25°C)
Symbol
V
CBO
V
CEO
V
EBO
I
C
Collector current
I
CP
P
C
Power dissipation
Tj
Junction temperature
Range of storage temperature Tstg
∗1
Pw=10ms
∗2
Each terminal mounted on a recommended land
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Limits
−30
−30
−6
−1.0
−2.0
200
150
−55~+150
Unit
V
V
V
A
A
∗1
mW
∗2
°C
°C
(2)
Each lead has same dimensions
2.9
1/3
2SA2048K
Transistor
!
Electrical characteristics
(Ta=25°C)
Parameter
Symbol Min. Typ. Max. Unit
Conditions
Collector-base breakdown voltage
BV
CBO
−30
−
−
V I
C
= −100µA
Collector-emitter breakdown voltage BV
CEO
−30
−
−
V I
C
= −1mA
Emitter-base breakdown voltage
BV
EBO
−6
−
−
V I
E
= −100µA
Collector cut-off current
−
−
−1.0 µA
V
CB
= −20V
I
CBO
Emitter cut-off current
I
EBO
−
−
−1.0 µA
V
EB
= −4V
Collector-emitter saturation voltage V
CE (sat)
−
−150 −300
mV I
C
= −500mA,
I
B
= −50mA
DC current gain
h
FE
V
CE
= −2V,
I
C
= −100mA
120
−
390
−
Transition frequency
f
T
−
350
−
MHz V
CE
= −10V,
I
E
=100mA,
f=10MHz
Collector output capacitance
Cob
−
10
−
pF V
CB
= −10V,
I
E
=0mA,
f=1MHz
Turn-on time
Ton
−
30
−
ns I
C
= −1.0A
I
B1
= −100mA
Storage time
Tstg
−
100
−
ns I
B2
=100mA
Fall time
Tf
−
20
−
ns V
CC
= −25V
!
h
FE
RANK
Q
120−270
R
180−390
!
Electrical characteristic curves
−10
COLLECTOR CURRENT : I
C
(A)
1000
500us
−1
SWITCHING TIME : (ns)
DC CURRENT GAIN : h
FE
1ms
Ta=25°C
V
CC
= −25V
I
C
/I
B
=10/1
1000
V
CE
= −2V
100
Ta=125°C
Ta=25°C
Ta=−40°C
10
Tstg
100
Tf
Ton
−0.1
10ms
100ms
DC
−0.01
Single
non repetitive
Pulse
−0.001
−0.01
−0.1
−1
−10
−100
10
−0.01
−0.1
−1
−10
1
−0.001
−0.01
−0.1
−1
−10
COLLECTOR TO EMITTER VOLTAGE : V
CE
(V)
COLLECTOR CURRENT : I
C
(A)
COLLECTOR CURRENT : I
C
(A)
Fig.1 Safe Operating Area
Fig.2 Switching Time
Fig.3 DC Current Gain vs.
Collector Current (Ι)
1000
Ta=25°C
−10
I
C
/I
B
=10/1
−10
Ta=25°C
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(V)
100
V
CE
= −5V
V
CE
= −3V
V
CE
= −2V
−1
Ta=125°C
Ta=25°C
Ta=−40°C
−0.1
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(V)
DC CURRENT GAIN : h
FE
−1
I
C
/I
B
=100/1
I
C
/I
B
=20/1
I
C
/I
B
=10/1
10
−0.1
1
−0.001
−0.01
−0.1
−1
−10
−0.01
−0.001
−0.01
−0.1
−1
−10
−0.01
−0.001
−0.01
−0.1
−1
−10
COLLECTOR CURRENT : I
C
(A)
COLLECTOR CURRENT : I
C
(A)
COLLECTOR CURRENT : I
C
(A)
Fig.4 DC Current Gain vs.
Collector Current (ΙΙ)
Fig.5 Collector-Emitter Saturation
Voltage vs.
Collector Current (Ι)
Fig.6 Collector-Emitter Saturation
Voltage vs.
Collector Current (ΙΙ)
2/3
2SA2048K
Transistor
I
C
/I
B
=10/1
V
CE
= −2V
TRANSITION FREQUENCY : fT (MHz)
−10
−10
COLLECTOR CURRENT : I
C
(A)
1000
BASE EMITTER SATURATION
VOLTAGE : V
BE (sat)
(V)
Ta=25°C
V
CE
= −10V
−1
Ta=125°C
Ta=25°C
−1
Ta=−40°C
100
Ta=−40°C
−0.1
Ta=25°C
Ta=125°C
−0.1
10
−0.01
−0.001
−0.01
−0.1
−1
−10
−0.01
0
−0.5
−1
−1.5
1
0.001
0.01
0.1
1
10
COLLECTOR CURRENT : I
C
(A)
BASE TO EMITTER VOLTAGE : V
BE
(V)
EMITTER CURRENT : I
E
(A)
Fig.7 Base-Emitter Saturation
Voltage vs. Collecter Current
Fig.8 Grounded Emitter
Propagation Characteristics
Fig.9 Transition Frequency
100
COLLECTOR OUTPUT
CAPACITANCE : Cob (pF)
Ta=25°C
f=1MHz
10
1
−0.1
−1
−10
−100
BASE TO COLLECTOR VOLTAGE : V
CB
(V)
Fig.10 Collector Output Capacitance
!
Switching characteristics measurement circuits
R
L=
25Ω
V
IN
P
W
I
B
1
I
C
V
CC
−25V
I
B
2
P
W
50µs
DUTY CYCLE 1%
I
B
2
I
B
1
BASE CURRENT
WAVEFORM
90%
COLLECTOR CURRENT
WAVEFORM
I
C
10%
Ton
Tstg
Tf
3/3
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0
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