SEMTECH_ELEC ST2SC3731

ST 2SC3731
NPN Silicon Epitaxial Planar Transistor
for general purpose amplifier and high speed
switching applications.
The transistor is subdivided into three groups, M, L
and K, according to its DC current gain.
On special request, these transistors can be
manufactured in different pin configurations.
Features
․High frequency current gain
․High speed switching
․Small output capacitance
․Complementary to ST 2SA1458 PNP transistor
TO-92 Plastic Package
Weight approx. 0.19g
Absolute Maximum Ratings (Ta = 25 OC)
Symbol
Value
Unit
Collector Base Voltage
VCBO
60
V
Collector Emitter Voltage
VCEO
40
V
Emitter Base Voltage
VEBO
6
V
Collector Current
IC
200
mA
Power Dissipation
Ptot
250
mW
Junction Temperature
Tj
150
Storage Temperature Range
TS
-55 to+150
O
C
O
C
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 07/08/2003
ST 2SC3731
Characteristics at Tamb=25 OC
Symbol
Min.
Typ.
Max.
Unit
Current Gain Group M
hFE
75
-
150
-
L
hFE
100
-
200
-
K
hFE
150
-
300
-
hFE
25
80
-
-
ICBO
-
-
0.1
μA
IEBO
-
-
0.1
μA
VCE(sat)
-
0.12
0.3
V
VBE(sat)
-
0.8
0.95
V
ton
-
-
70
ns
tstg
-
100
200
ns
toff
-
-
250
ns
fT
300
510
-
MHz
COB
-
3
4
pF
DC Current Gain*
at VCE=1V, IC=10mA
at VCE=1V, IC=100mA
Collector Cutoff Current
at VCB=30V
Emitter Cutoff Current
at VEB=3V
Collector Saturation Voltage*
at IC=50mA, IB=5mA
Base Saturation Voltage*
at IC=50mA, IB=5mA
Turn-on Time
See test circuit
Storage Time
See test circuit
Turn-off Time
See test circuit
Gain Bandwidth Product
at VCE=20V, -IE=10mA, f=100MHz
Output Capacitance
at VCB=5V, f=1MHz
*Pulsed PW≦350μs, Duty Cycle≦2%
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 07/08/2003
ST 2SC3731
Collector current vs.
collector em itter voltage
20
Collector current vs.
collector em itter voltage
100
90
80
700
800
900 1mA
70
16
80
600
500
400
60
12
Ic (mA)
Ic (mA)
50
40
8
30
20
4
60
300
40
200
20
I B =10 A
I B =100 A
0
0
20
10
30
40
0
50
0.8
0.4
V CE (V)
2.0
Collector current vs. base emitter voltage
Total power dissipation vs.
ambient tem perature
100
400
VCE= 1V
300
10
I C, mA
Total power dissipation, mW
1.6
1.2
V CE (V)
200
1
100
0
50
0.1
100
150
200
0.4
0
0.8
Am bient tem perature T a ( C)
1.2
VBE, V
Gain bandwidth product
vs. emitter current
DC current gain vs. collector current
1000
1000
VCE= 1V
VCE= 20V
500
100
hFE
fT, MHz
200
100
50
20
10
-1
-10
-100
10
0.1
IE, mA
1
10 20
100
I C, mA
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 07/08/2003
ST 2SC3731
Input and output capacitance
vs. reverse voltage
Base and collector saturation
voltage vs. collector current
30
3
f=1MHz
IE=0(Cib)
IC=0(Cob)
IC/IB=10
10
VCE(sat), V
VBE(sat), V
1
VBE(sat)
Cob, pF
Cib, pF
Cib
0.1
Cob
1
VCE(sat)
0.1
0.01
0.1
0.1
100
10
1
VCB, V
VEB , V
I C, mA
Turn on tim e vs. collector current
Rise tim e vs. collector current
1000
1000
VCC= 30V
tr - rise time , ns
ton, ns
VCC= 30V
VBE(off)= -5V
IC/IB=20
100
IC/IB=10
100
IC/IB=20
IC/IB=10
10
10
2
200
100
10
2
100
10
I C, mA
200
I C, mA
Fall tim e vs. collector current
Storage tim e vs. collector current
1000
1000
VCC= 30V
IB1= -IB2
tf - fall time, ns
VCC= 30V
IB1= -IB2
ts - storage time, ns
100
10
1
IC/IB=10 to 20
100
100
IC/IB=20
IC/IB=10
10
10
2
100
10
200
2
I C, mA
100
10
200
I C, mA
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 07/08/2003
ST 2SC3731
SWITCHING TIME TEST CIRCUIT
VCC= +3V
VBB= -0.5V
INPUT
275
100
td
V OUT
0.1 F
11.1V
10K
tr
OUTPUT
10 %
V IN
90%
100
PW ≦ 300ns
tr<1ns
Duty Cycle=2 %
ton SW ITCHING
ton = t d + t r
VCC= +3V
VBB= +11V
INPUT
275
100
t stg
V OUT
0.1 F
10 %
V IN
-20V
100
tf
10
1S955
OUTPUT
90%
1S955
PW ≦ 300ns
tr < 9ns
Duty Cycle=2 %
t off SW ITCHING
toff = t f + t stg
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Dated : 07/08/2003