Page 1
2SA2048
Transistor
Medium power transistor (−30V, −1.0A)
2SA2048
!
!External dimensions (Units : mm)
!
!Features
!!
1) High speed switching. (Tf : Typ. : 20ns
at IC
2) Low saturation voltage, typically
(Typ. : −150mV
at IC = −500mA, IB = −50mA)
3) Strong discharge power for inductive load and
capacitance load.
4) Complements the 2SC5730
!Applications
Small signal low frequency amplifier
High speed switching
!
!Structure
!!
PNP Silicon epitaxial planar transistor
!
!Packaging specifications
!!
Type
2SA2048
Package
Code
Basic ordering unit (pieces)
Taping
TL
3000
!
!Absolute maximum ratings (Ta=25°C)
!!
C
Limits
−30
−30
−6
−1.0
−2.0
500
150
−55~+150
Parameter Symbol
V
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Power dissipation
Junction temperature
Range of storage temperature
∗1 Pw=10ms
∗2 Each terminal mounted on a recommended land
CBO
V
CEO
V
EBO
I
I
CP
P
Tj
Tstg
C
= −1.0A)
Unit
mW
°C
°C
!!
2.8
0.95
1.9
0.95
0.16
0.3 0.6
1.6
)
1
(
)
2
(
)
3
(
Each lead has same dimensions
0 0.1
0.4
2.9
0.85
0.7
1.0MAX
TSMT3
(1)Base
(2)Emitter
(3)Collector
Abbreviated symbol : UL
V
V
V
A
∗1
A
∗2
1/3
Page 2
Transistor
!
!Electrical characteristics (T a= 25°C)
!!
Parameter Symbol Min. Typ. Max. Unit Conditions
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
BV
BV
BV
Collector cut-off current
Emitter cut-off current
Collector-emitter saturation voltage
V
DC current gain
Transition frequency
Collector output capacitance
Turn-on time
Storage time
Fall time
!!!!
FE
h
RANK
QR
120−270 180−390
!
!Electrical characteristic curves
!!
−10
(A)
C
−
1
100ms
−0.1
COLLECTOR CURRENT : I
−0.01
DC
Single
non repetitive
Pulse
−0.1 −1 −10 −100
COLLECTOR TO EMITTER VOLTAGE : VCE (V)
10ms
1ms
Fig.1 Safe Operating Area
1000
FE
100
10
DC CURRENT GAIN : h
1
−0.001 −0.01 −0.1 −1 −10
VCE= −5V
VCE= −3V
VCE= −2V
COLLECTOR CURRENT : IC (A)
Ta=25°C
Fig.4 DC Current Gain vs.
Collector Current (ΙΙ)
CBO
−30 −−VIC= −100µA
CEO
−30 −−V
EBO
−6 −−V
CBO
I
I
CE (sat)
h
−−−1.0 µA
EBO
−−−1.0 µA
−−150 −300 mV
FE
120 − 390 −
f
T
− 350 − MHz
Cob − 10 − pF
Ton − 30 − ns
Tstg − 100 − ns
Tf − 20 − ns
1000
Tstg
100
SWITCHING TIME : (ns)
10
−10
−1
(V)
CE (sat)
−0.1
COLLECTOR SATURATION
VOLTAGE : V
−0.01
−0.001 −0.01 −0.1 −1 −10
Fig.5 Collector-Emitter Saturation
Tf
Ton
−0.01 −0.1 −1 −10
COLLECTOR CURRENT : IC (A)
Fig.2 Switching Time
Ta=125°C
Ta=25°C
Ta= −40°C
COLLECTOR CURRENT : IC (A)
Voltage vs.
Collector Current (Ι)
I
C
= −1mA
I
E
= −100µA
CB
= −20V
V
V
EB
= −4V
I
C
= −500mA, IB= −50mA
V
CE
= −2V, IC= −10mA
V
CE
= −10V, IE=100mA, f=10MHz
CB
= −10V, IE=0A, f=1MHz
V
I
C
= −1.0A
I
B1
= −0.1A
I
B2
=0.1A
V
CC
−25V
1000
Ta=25°C
CC
= −25V
V
C/IB
=10/1
I
IC/IB=10/1
FE
100
10
DC CURRENT GAIN : h
−0.001 −0.01 −0.1 −1 −10
−10
−1
(V)
CE (sat)
−0.1
COLLECTOR SATURATION
VOLTAGE : V
−0.01
−0.001 −0.01 −0.1 −1 −10
Fig.6 Collector-Emitter Saturation
2SA2048
Ta=125°C
Ta=25°C
Ta= −40°C
1
COLLECTOR CURRENT : IC (A)
Fig.3 DC Current Gain vs.
Collector Current (Ι)
IC/IB=20/1
IC/IB=10/1
COLLECTOR CURRENT : IC (A)
Voltage vs.
Collector Current (ΙΙ)
VCE= −2V
Ta=25°C
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Page 3
Transistor
−10
−1
(V)
BE (sat)
Ta= −40°C
Ta=25°C
−0.1
Ta=125°C
2SA2048
IC/IB=10/1
−10
(A)
C
Ta=125°C
Ta=25°C
−1
Ta= −40°C
−0.1
VCE=2V
1000
100
10
Ta=25°C
V
CE= −10V
BASE EMITTER SATURATION
VOLTAGE : V
−0.01
−0.001 −0.01 −0.1 −1 −10
COLLECTOR CURRENT : IC (A)
Fig.7 Base-Emitter Saturation
COLLECTOR CURRENT : I
−0.01
0 −0.5 −1 −1.5
BASE TO EMITTER VOLTAGE : VBE (V)
Fig.8 Grounded Emitter
Voltage vs.Collecter Current
100
10
COLLECTOR OUTPUT
CAPACITANCE : Cob (pF)
1
−0.1 −1 −10 −100
BASE TO COLLECTOR VOLTAGE : VCB (V)
Fig.10
Collector Output Capacitance
Ta=25°C
f=1MHz
!
!Switc hing ch aract eristi cs measur ement circuit s
!!
V
IN
P
W
PW 50µs
DUTY CYCLE 1%
Propagation Characteristics
RL=25Ω
C
I
B1
I
B2
I
TRANSITION FREQUENCY : fT (MHz)
1
0.001 0.01 0.1 1 10
EMITTER CURRENT : IE (A)
Fig.9 Transition Frequency
VCC −25V
BASE CURRENT
WAVEFORM
COLLECTOR CURRENT
WAVEFORM
90%
Ton Tstg Tf
10%
I
B2
I
B1
C
I
3/3
Page 4
Appendix
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.
Notes
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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