QSX2
Transistors
General purpose amplification (30V, 5A)
QSX2
Application
Low frequency amplifier
External dimensions
(Unit : mm)
2.8
1.6
Features
1) Collector current is large.
2) Collector saturation voltage is low.
V
CE (sat)
250mV
at I
C
= 2A / I
B
= 40mA
ROHM : TSMT6
(1)
(4) (5) (6)
0.4
0.16
(3) (2)
Each lead has same dimensions
Abbreviated symbol : X02
Absolute maximum ratings
(Ta=25°C)
Parameter
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Power dissipation
Junction temperature
Range of storage temperature
Equivalent Circuit
Unit
V
V
V
A
A
mW
W
°C
°C
6pin
5pin
4pin
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
CP
P
C
Tj
Tstg
Limits
30
30
6
5
8
500
1.25
150
−55
to
+150
∗1
∗2
∗3
1pin
2pin
3pin
∗1
Single pulse, Pw=1ms
∗2
Each Terminal Mounted on a Recommended
∗3
Mounted on a 25mm×25mm×
t
0.8mm Ceramic substrate
Electrical characteristics
(Ta=25°C)
Parameter
Collector-base breakdown voltage
Collector-emitter breakdown voltage
Emitter-base breakdown voltage
Collector cutoff current
Emitter cutoff current
Collector-emitter saturation voltage
DC current gain
Transition frequency
Collector output capacitance
∗Pulsed
Symbol Min. Typ. Max. Unit
BV
CBO
BV
CEO
BV
EBO
I
CBO
I
EBO
V
CE (sat)
h
FE
f
T
Cob
30
30
6
−
−
−
270
−
−
−
−
−
−
−
110
−
200
60
−
−
−
100
100
250
680
−
−
V
V
V
nA
nA
mV
−
pF
I
C
=10µA
I
C
=1mA
I
E
=10µA
V
CB
=30V
V
EB
=6V
Conditions
I
C
/ I
B
=2A/40mA
V
CE
/ I
C
=2V
/ 500mA
V
CB
=10V,
I
E
=0A,
f=1MHz
∗
MHz V
CE
=2V,
I
E
= −500mA,
f=100MHz
∗
0.85
2.9
Rev.B
1/2
QSX2
Transistors
Packaging specifications
Package
Type
Taping
TR
3000
Code
Basic ordering unit (pieces)
QSX2
Electrical characteristic curves
1000
Ta=125°C
V
CE
=2V
Pulsed
1
I
C
/ I
B
=20
/ 1
Pulsed
10
I
C
/ I
B
=50
/ 1
Pulsed
Ta=125°C
Ta=25°C
Ta=
−40°C
Ta=25°C
Ta=
−40°C
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(V)
0.1
Ta=125°C
Ta=25°C
COLLECTOR SATURATION
VOLTAGE : V
CE (sat)
(V)
DC CURRENT GAIN : h
FE
1
100
0.01
Ta=
−40°C
0.1
10
0.001
0.01
0.1
1
10
0.001
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.1 DC current gain
vs. collector current
10
Fig.2 Collector-emitter saturation voltage
vs. collector current
10
Fig.3 Collector-emitter saturation voltage
vs. collector current
1000
BASE SATURATION VOLTAGE : V
BE (sat)
(V)
1
Ta=125°C
Ta=25°C
Ta=
−40°C
1
Ta=
−40°C
Ta=25°C
Ta=125°C
0.1
TRANSITION FREQUENCY : f
T
(MHz)
COLLECTOR CURRENT : I
C
(A)
I
C
/ I
B
=20
/ 1
Pulsed
V
CE
=2V
Pulsed
V
CE
=2V
Ta=25°C
f=100MHz
100
0.01
0.1
0.001
0.001
0.01
0.1
1
10
0
1
10
10
0.01
0.1
1
10
COLLECTOR CURRENT : I
C
(A)
BASE TO EMITTER CURRENT : V
BE
(V)
EMITTER CURRENT : I
E
(A)
Fig.4 Base-emitter saturation voltage
vs. collector current
EMITTER INPUT CAPACITANCE : Cib (pF)
COLLECTOR OUTPUT CAPACITANCE : Cob (pF)
Fig.5 Grounded emitter propagation
characteristics
Fig.6 Gain bandwidth product
vs. emitter current
10000
I
C
=
0A
f
=
1MHz
Ta=25°C
1000
Cib
100
Cob
10
0.001
0.01
0.1
1
10
100
EMITTER TO BASE VOLTAGE : V
EB
(V)
COLLECTOR TO BASE VOLTAGE : V
CB
(V)
Fig.7 Collector output capacitance
vs. collector-base voltage
Emitter input capacitance
vs. emitter-base voltage
Rev.B
2/2
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 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-Rev1.1
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