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QSX2
Transistors
General purpose amplification (30V, 5A)
QSX2
zApplica tion
Low frequency amplifier
zFeatures
1) Collector current is large.
2) Collector saturation voltage is low.
V
CE (sat) 250mV
at I
C = 2A / IB = 40mA
zAbsolute maximum ratings (Ta=25°C)
Parameter Symbol
Collector-base voltage
Collector-emitter voltage
Emitter-base voltage
Collector current
Power dissipation
Junction temperature
Range of storage temperature
∗1 Single pulse, Pw=1ms
∗2 Each Terminal Mounted on a Recommended
∗3 Mounted on a 25mm
×
25mm
V
V
V
Tstg
t
×
0.8mm Ceramic substrate
CBO
CEO
EBO
I
C
I
CP
P
C
Tj
Limits
30
30
6
5
8
500 mW
1.25
150
−55 to +150
Unit
W
°C
°C
V
V
V
A
∗1
A
∗2
∗3
zExternal dimensions (Unit : mm)
2.8
1.6
)
1
(
(6)(5)(4)
Each lead has same dimensions
ROHM : TSMT6
)
2
(
0.4
)
3
(
0.16
Abbreviated symbol : X02
zEquivalent Circuit
6pin 5pin 4pin
1pin 2pin 3pin
2.9
0.85
zElectrical characteristics (Ta=25°C)
Parameter Symbol Min. Typ. Max. Unit Conditions
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
BV
BV
BV
I
I
CE (sat)
V
Cob
CBO
EBO
h
f
CBO
CEO
EBO
FE
T
30
−−
30
−−
6
−−
−−
−−
110 250 mV
−
270
−
200
−
60
−
100 nA
100 nA
680
MHz
−
pF
−
V
I
C
=10µA
V
I
C
=1mA
V
IE=10µA
VCB=30V
VEB=6V
IC / IB=2A/40mA
− V
CE
/ IC=2V / 500mA
VCE=2V, IE= −500mA, f=100MHz
VCB=10V, IE=0A, f=1MHz
∗
∗
Rev.B 1/2
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Transistors
zPackaging specifications
Package
Type
Code
Basic ordering unit (pieces)
QSX2
zElectrical characteristic curves
1000
FE
100
Ta=125°C
Ta=25°C
Ta= −40°C
VCE=2V
Pulsed
Taping
TR
3000
0.1
(V)
CE (sat)
1
IC / IB=20 / 1
Pulsed
Ta=125°C
Ta=25°C
10
(V)
CE (sat)
IC / IB=50 / 1
Pulsed
1
Ta=125°C
Ta=25°C
Ta= −40°C
QSX2
DC CURRENT GAIN : h
10
0.001 0.01 0.1 1 10
COLLECTOR CURRENT : IC (A)
Fig.1 DC current gain
vs. collector current
10
IC / IB=20 / 1
(V)
Pulsed
BE (sat)
Ta= −40°C
Ta=25°C
1
0.1
0.001 0.01 0.1 1 10
BASE SATURATION VOLTAGE : V
COLLECTOR CURRENT : IC (A)
Fig.4
Base-emitter saturation voltage
Ta=125°C
vs. collector current
10000
I
C
=
0A
f
=
1MHz
Ta=25°C
0.01
COLLECTOR SATURATION
VOLTAGE : V
0.001
0.001 0.01 0.1 1 10
COLLECTOR CURRENT : IC (A)
Fig.2
Collector-emitter saturation voltage
Ta= −40°C
vs. collector current
10
(A)
Ta=125°C
C
Ta=25°C
1
Ta= −40°C
0.1
0.01
COLLECTOR CURRENT : I
0.001
0110
BASE TO EMITTER CURRENT : V
VCE=2V
Pulsed
(V)
BE
Fig.5 Grounded emitter propagation
characteristics
0.1
COLLECTOR SATURATION
VOLTAGE : V
0.01
0.001 0.01 0.1 1 10
COLLECTOR CURRENT : I
Fig.3
Collector-emitter saturation voltage
C
(A)
vs. collector current
1000
(MHz)
T
100
TRANSITION FREQUENCY : f
10
0.01 0.1 1 10
EMITTER CURRENT : I
Fig.6 Gain bandwidth product
vs. emitter current
VCE=2V
Ta=25°C
f=100MHz
(A)
E
1000
Cib
100
Cob
EMITTER INPUT CAPACITANCE : Cib (pF)
10
0.001 0.01 0.1 1 10 100
COLLECTOR OUTPUT CAPACITANCE : Cob (pF)
EMITTER TO BASE VOLTAGE : VEB (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
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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 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-Rev1.1
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