SSTA28 Rohm, SSTA28 Datasheet - Page 2

• Manufacturer Part Number: SSTA28
• Description: NPN general purpose transistor
• Manufacturer: Rohm

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