SSTA28 Rohm, SSTA28 Datasheet - Page 2
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SSTA28
Manufacturer Part Number
SSTA28
Description
NPN general purpose transistor
Manufacturer
Rohm
Datasheet
1.SSTA28.pdf
(3 pages)
Transistors
200k
100k
Electrical characteristic curves
500
450
400
350
300
250
200
150
100
50k
20k
10k
50
5k
2k
0
Fig.4 DC current gain vs. collector
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0
Fig.1 Grounded emitter output
V
1
CE
1
Fig.7 Base emitter "ON" voltage
Ta=25 C
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
-COLLECTOR-EMITTER VOLTAGE (
2
I
2
C
-COLLECTOR CURRENT (
I
current
C
-COLLECTOR CURRENT (
5
characteristics
vs collector current
5
10 20
10 20
25 C
Ta=25 C
40 C
Ta= 40 C
125 C
25 C
50 100 200 500 1000
50 100 200 500 1000
mA)
I
B
mA)
=0 A
V
CE
=5V
V
CE
V)
=5V
2.0
50
45
40
35
30
25
20
15
10
5
100
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
90
80
70
60
50
40
30
20
10
Fig.2 Typical output characteristics
100
0
0
50
20
10
0
1
Fig.5 Collecor emitter saturation
V
5
2
1
0.5
CE
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
-COLLECTOR-EMITTER VOLTAGE (
2
I
C
Fig.8 Capacitance
-COLLECTOR CURRENT (
1
REVERSE BIAS VOLTAGE (
voltage vs collector current
5
1.6
10 20
vs reverse bias voltage
2
Ta= 40 C
125 C
25 C
Cib
50 100 200 500 1000
5
I
B
=0 A
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
Cob
mA)
Ic/I
20
B
f=1MHz
Ta=25 C
Ta=25 C
=1000
V)
V)
5.0
50
200k
100k
Fig.6 Base emitter saturation voltage
50k
20k
1000
10k
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
Fig.9 Current gain-bandwdth product
500
200
100
5k
2k
Fig.3 DC current gain vs. collector
50
20
10
SSTA28 / MMSTA28
1
1
1
vs collector current
2
2
vs collector current
I
I
I
C
C
C
-COLLECTOR CURRENT (
-COLLECTOR CURRENT (
current (
-COLLECTOR CURRENT (
5
5
10 20
10 20
10
Ta= 40 C
125 C
25 C
)
50 100 200 500 1000
50 100 200 500 1000
100
VCE=5V
1V
Ta=25 C
mA)
mA)
Ta=25 C
V
mA)
3V
Ic/I
CE
B
=1000
=10V
1000
2/2