QST5 Rohm, QST5 Datasheet - Page 2

• Manufacturer Part Number: QST5
• Description: Low frequency amplifier
• Manufacturer: Rohm

Transistors
Type
QST5
0.01
Fig.4 Grounded emitter propagation
Packaging specifications
Electrical characteristic curves
0.1
1000
10
Fig.7 Collector output capacitance
100
1
1000
10
0.1
100
10
0.001
V
Pulsed
BASE TO EMITTER CURRENT : V
1
0.001
BE
EMITTER TO BASE VOLTAGE : V
COLLECTOR TO BASE VOLTAGE : V
=−2V
characteristics
vs. collector-base voltage
Emitter input capacitance
vs. emitter-base voltage
Ta=25 C
Fig.1 DV current gain
Cib
Cob
COLLECTOR CURRENT : I
0.01
0.01
Ta=100 C
Ta=100 C
Ta=−40 C
package
Code
Basic ordering unit(pieces)
vs. collector current
0.1
1
0.1
Ta=−40 C
Ta=25 C
1
1
10
C
BE
V
Pulsed
BE
(A)
I
f=1MHz
Ta=25 C
CE
C
(V)
=0A
=−2V
(V)
CB
10
10
(V)
100
Taping
Fig.2 Collector-emitter saturation voltage
3000
TR
1000
0.01
100
0.1
10
10
1
vs. collector current
0.001
0.01
I
Pulsed
C
/I
B
Fig.5 Gain bandwidth product
=20/1
COLLECTOR CURRENT : IC (A)
EMITTER CURRENT : I
0.01
vs. emitter curent
0.1
0.1
Ta=100 C
Ta=25 C
1
1
E
Ta=−40 C
(A)
Ta=25 C
V
f=100MHz
CE
=−2V
10
10
Fig.3 Base-emitter saturation voltage
10000
1000
100
10
0.1
10
0.01
1
1
0.001
I
vs. collector current
C
/I
B
=20/1
COLLECTOR CURRENT : IC (A)
COLLECTOR CURRENT : I
I
C
/I
B
=50/1
Fig.6 Switching time
0.01
0.1
Rev.B
0.1
tstg
I
C
/I
B
=10/1
1
tf
QST5
1
C
Ta= 25 C
V
I
Pulsed
C
(A)
CE
/I
Ta=25 C
Pulsed
B
=−2V
=20/1
tdon
tr
2/2
10
10