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©2010 ROHM Co., Ltd. All rights reserved.
Midium Power Transistors (±50V / ±3A)
QS5Y2
Structure Dimensions (Unit : mm)
NPN/PNP Silicon epitaxial planar transistor
Features
1) Low saturation voltage, typically
V
V
= -0.40V (Max.) (IC / IB= -1A / -50mA)
CE (sat)
= 0.35V (Max.) (IC / IB= 1A / 50mA)
CE (sat)
2) High speed switching
Applications
Low Frequency Amplifier
Driver
TSMT5
(1) Base
(2) Collector
(3) Emitter
Abbreviated symbol : Y02
Packaging specifications
Package TSMT5
Type
Code TR
Basic ordering unit (pieces) 3000
Absolute maximum ratings (Ta = 25C)
<Tr.1>
Parameter
Symbol Limits Unit
Collector-base voltage V
Collector-emitter voltage V
Emitter-base voltage
Collector current
<Tr.2>
DC I
Pulsed I
Parameter
Symbol Limits Unit
Collector-base voltage V
Collector-emitter voltage V
Emitter-base voltage
Collector current
DC I
Pulsed I
Inner circuit (Unit : mm)
(4)(5)
Tr.1 Tr.2
(1) Tr.1 Base
(2) Emitter
(3) Tr.2 Base
(4) Tr.2 Collector
(5) Tr.1 Collector
*1
*1
-50 V
-50 V
-6 V
-3 A
-6 A
50 V
50 V
6V
3A
6A
CBO
CEO
V
EBO
C
CP
CBO
CEO
V
EBO
C
CP
(2) (3)
(1)
<Tr.1 and Tr.2>
Parameter
Symbol Limits Unit
Power dissipation
Junction temperature T
Range of storage temperature T
*1 Pw=10ms, Single Pulse
*2 Mounted on a recommended land.
*3 Mounted on a 25 x 25 x 0.8[mm] ceramic board.
*2
P
D
P
D
P
D
j
stg
0.5 W/Total
*3
1.25 W/Total
*3
0.9 W/Element
150 C
-55 to 150 C
1/7
2010.11 - Rev.A

Data Sheet
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©2010 ROHM Co., Ltd. All rights reserved.
QS5Y2
Electrical characteristics (Ta=25°C)
<Tr.1>
Collector-emitter breakdown voltage
Collector-base breakdown voltage
Emitter-base breakdown voltage
Collector cut-off current
Emitter cut-off current
Collector-emitter staturation voltage
DC current gain
Transition frequency
Turn-on time
Storage time
Fall time
*1 Pulsed
*2 See switching time test circuit
Symbol Min. Typ. Max. Unit
BV
BV
BV
I
I
V
CE(sat)
CBO
EBO
h
f
C
t
t
stg
t
CEO
CBO
EBO
FE
T
ob
on
-50 - - V
-50 - - V
-6 - - V
---1
---1
*1
- -200 -400 mV
180 - 450 -
*1
-
-24Collector output capacitance
-45-ns
*2
- 250 - ns
*2
-35-ns
*2
f
A
A
MHz300 -
-
pF
ConditionsParameter
= -1mA
I
C
= -100μA
I
C
= -100μA
I
E
= -50V
V
CB
= -4V
V
EB
=-1A, IB=-50mA
I
C
= -3V, IC= -50mA
V
CE
= -10V
V
CE
I
=500mA, f=100MHz
E
= -10V, IE=0A
V
CB
f=1MHz
I
= -1.5A, IB1= -150mA,
C
I
=150mA, V
B2
CC
~
-12V
<Tr.2>
Parameter Conditions
Collector-emitter breakdown voltage
Collector-base breakdown voltage
Emitter-base breakdown voltage
Collector cut-off current
Emitter cut-off current
Collector-emitter staturation voltage
DC current gain
Transition frequency
Collector output capacitance
Turn-on time
Storage time
Fall time
*1 Pulsed
*2 See switching time test circuit
Symbol Min. Typ. Max. Unit
BV
BV
BV
I
I
V
CE(sat)
CBO
EBO
h
f
C
t
t
stg
t
CEO
CBO
EBO
FE
T
ob
on
f
50 - - V
50 - - V
6--V
--1
--1
*1
- 130 350 mV
180 - 450 -
*1
- 320 - MHz
-13
-50-ns
*2
- 450 - ns
*2
-80-ns
*2
-pF
A
A
= 1mA
I
C
= 100μA
I
C
= 100μA
I
E
= 50V
V
CB
= 4V
V
EB
= 1A, IB= 50mA
I
C
= 3V, IC= 50mA
V
CE
= 10V
V
CE
I
=-500mA, f=100MHz
E
= 10V, IE=0A
V
CB
f=1MHz
I
= 1.5A, IB1= 150mA,
C
I
=-150mA, V
B2
CC
~
12V
2/7
2010.11 - Rev.A

Data Sheet
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
Electrical characteristic curves (Ta = 25C)
-0.5
-0.4
-0.3
-0.2
-0.1
0.0
-2-1.5-1-0.50
COLLECTOR CURRENT : I
C
[A]
COLECTOR TO EMITTER VOLTAGE : VCE[V]
Fig.1 Typical Output Characteristics
10
100
1000
-1 -10 -100 -1000 -10000
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : IC[mA]
Fig.2 DC Current Gain vs. Collector Current ( I )
10
100
1000
-1 -10 -100 -1000 -10000
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : IC[mA]
Fig.3 DC Current Gain vs. Collector Current ( II )
-0.001
-0.01
-0.1
-1
-1 -10 -100 -1000 -10000
COLLECTOR SATURATION VOLTAGE : V
CE
(sat)[V]
COLLECTOR CURRENT : IC[mA]
Fig.4 Collector-Emitter Saturation Voltage vs. Collector Current ( I )
-0.001
-0.01
-0.1
-1
-1 -10 -100 -1000 -10000
COLLECTOR SATURATION VOLTAGE : V
CE
(sat)[V]
COLLECTOR CURRENT : IC[mA]
Fig.5 Collector-Emitter Saturation Voltage vs. Collector Current
1
10
100
1000
10000
-1.5-1-0.50
COLLECTOR CURRENT : I
C
[mA]
BASE TO EMITTER VOLTAGE : VBE[V]
Fig.6 Ground Emitter Propagation Characteristics

Data Sheet
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©2010 ROHM Co., Ltd. All rights reserved.
10
100
1000
10 100 1000
TRANSITION FREQUENCY : f
T
[MHz]
EMITTER CURRENT : IE[mA]
Fig.7 Gain Bandwidth Product vs. Emitter Current
1
10
100
1000
-0.1 -1 -10 -100
COLLECTOR OUTPUT CAPACITANCE : Cob(pF)
EMITTER INPUT CAPACITANCE : Cib(pF)
COLLECTOR - BASE VOLTAGE : VCB [V]
EMITTER - BASE VOLTAGE : VEB [V]
Fig.8 Emitter Input Capacitance vs. Emitter-Base Voltage
Collector Output Capacitance vs. Collector-Base Voltage
-0.01
-0.1
-1
-10
-0.1 -1 -10 -100
COLLECTOR CURRENT : I
C
[A]
COLLECTOR TO EMITTER VOLTAGE : VCE[V]
Fig.9 Safe Operating Area
When one element operated
Single non repetitive pulse
(Mounted on a
recommended land)

Data Sheet
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©2010 ROHM Co., Ltd. All rights reserved.
0.00
0.10
0.20
0.30
0.40
0.50
0 0.5 1 1.5 2
COLLECTOR CURRENT : I
C
[A]
COLECTOR TO EMITTER VOLTAGE :VCE[V]
Fig.1 Typical OutputCharacteristics
10
100
1000
1 10 100 1000 10000
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : IC[mA]
Fig.2 DC Current Gain vs. Collector Current ( I )
10
100
1000
1 10 100 1000 10000
DC CURRENT GAIN : h
FE
COLLECTOR CURRENT : IC[mA]
Fig3. DC Current Gain vs. Collector Current ( II )
0.001
0.01
0.1
1
1 10 100 1000 10000
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
[V]
COLLECTOR CURRENT : IC[mA]
Fig.4 Collector-Emitter Saturation Voltage vs. Collector Current ( I )
0.001
0.01
0.1
1
1 10 100 1000 10000
COLLECTOR SATURATION VOLTAGE : V
CE(sat)
[V]
COLLECTOR CURRENT : IC[mA]
Fig.5 Collector-Emitter Saturation Voltage vs. Collector Current ( II )
1
10
100
1000
10000
0 0.5 1 1.5
COLLECTOR CURRENT : I
C
[mA]
BASE TO EMITTER VOLTAGE : VBE[V]
Fig.6 Ground Emitter Propagation Characteristics

Data Sheet
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
10
100
1000
10 100 1000
TRANSITION FREQUENCY : f
T
[MHz]
EMITTER CURRENT : IE[mA]
Fig.7 Gain Bandwidth Product vs. Emitter Current
1
10
100
1000
0.1 1 10 100
COLLECTOR OUTPUT CAPACITANCE : Cob(pF)
EMITTER INPUT CAPACITANCE : Cib(pF)
COLLECTOR - BASE VOLTAGE : VCB (V)
EMITTER - BASE VOLTAGE : VEB (V)
Fig.8 Emitter Input Capacitance vs. Emitter-Base Voltage
Collector Output Capacitance vs. Collector-Base Voltage
0.01
0.1
1
10
0.1 1 10 100
COLLECTOR CURRENT : I
C
[A]
COLLECTOR TO EMITTER VOLTAGE : VCE[V]
Fig.9 Safe Operating Area
Ta=25°C
When one element operated
Single non repetitive pulse
DC Ta=25°C
(Mounted on a

Data Sheet
www.rohm.com
©2010 ROHM Co., Ltd. All rights reserved.
QS5Y2
Switching time test circuit
<Tr.1>
V
IN
Pw
~
Pw 50μs
DUTY CYCLE≦1%
BASE CURRENT WAVEFORM
COLLECTOR CURRENT WAVEFORM
90%
RL=8.2Ω
I
B1
I
B2
t
on
t
stg
I
C
VCC -12V
~
I
B2
I
B1
t
f
I
C
<Tr.2>
V
IN
Pw 50μs
P
DUTY CYCLE≦1%
BASE CURRENT WAVEFORM
COLLECTOR CURRENT WAVEFORM
~
90%
10%
t
on
=8.2Ω
R
L
B1
I
C
I
IB2
B1
I
I
B2
t
t
stg
IC
V
12V
~
CC
10%
7/7
2010.11 - Rev.A

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R1010
A